Technical work summary essay

Summary of drilling technology work

I joined the work in 1996 and have been drilling the first line of production. From a small driller who knows nothing, to a drilling technician with a 10-year rig captain experience. I really like to drill this line. Others say that doing drilling work is too bitter and too tired. I don't think so. I feel bitter. When I joined the work, I made up my mind that I must learn drilling techniques. When I was at work, I carefully observed how the masters operated the machine, how to take the core, how to mine the coal, and carefully recorded the work. After work, I wrote the harvest of the day as a technical summary, and asked the masters to give pointers, so I made progress. Soon, the third year of work became the squad leader. In the sixth year, I took the captain's job. Looking back on the working life of more than ten years, I have a clear understanding of the drilling process. I will summarize my work experience for your reference.

Drilling mainly uses a mechanical or artificial way to drill a circular hole with a small diameter and a large depth to the surface of the earth, and then obtain relevant geological information to provide a basic guarantee for the development of resources.

A very important part of drilling is drilling. The drilling method is usually divided into two aspects. The first is that depending on the nature and manner of the external force of the broken rock, the drilling method is divided into: rotary drilling, impact drilling, and impact rotary drilling. The second is based on broken rock tools: hard alloy drilling, steel drilling, diamond drilling, and roller drilling. The drilling process is the construction process of drilling the hole from the opening hole to the final hole. When the rock drilling is drilled, the power machine drives the drilling machine to rotate. The drill bit, the core tube and the drill bit form the drill cutting tool to engrave the rock, so as to reach deep into the deep layer. Drill in.

In coalfield geological drilling, cemented carbide drilling is the most common. Carbide drilling is a cemented carbide drill bit that breaks the rock at the bottom of the hole under the axial pressure and the rotation of the drill. At the same time, the flushing fluid is used to cool the drill bit, and the broken rock particles are discharged out of the hole to create conditions for the cutting tool to continue to break the rock. In the hard alloy drilling, we must pay attention to the mastery of technical parameters.

Drilling pressure, rotation speed and flushing fluid volume are controllable parameter values. Different adjustments should be made according to geological conditions and rock conditions during drilling. The drilling pressure and the turning force constitute the cutting force of the broken rock of the cutting tool. Increasing the bit drilling pressure is the main way to increase the drilling speed.

Drilling pressure has a large impact on drilling efficiency and bit life. The unit pressure of the cutting tool acting on the rock must be greater than the compressive strength of the rock to work in a volumetric manner, thereby achieving higher drilling speed and reducing wear on the cutting tool.

When cemented carbide is drilled, the bit rotation speed has a great influence on the drilling speed. Production practice has proved that increasing the number of revolutions increases the number of fractures of the alloy cutting tool under the same conditions and ranges, and the drilling speed increases with the increase of the rotational speed. Increasing, the optimal rotational speed required for rocks of different natures is also different, and the increase of the rotational speed has an optimal limit value. After this value is exceeded, the drilling speed will decrease.

In the cemented carbide drilling, the quality and quantity of the rinsing liquid also have a great influence on the drilling speed. According to the proof, the drilling speed decreases with the increase of the life or viscosity of the rinsing liquid. When the conditions in the drilling production permit, it should be used as much as possible. Clean water, low solid phase and no solid phase flushing fluid to improve drilling efficiency. When drilling cemented carbide, the amount of flushing fluid should be used as much as possible to quickly remove rock powder and cuttings, keep the working surface of the hole bottom clean, increase the drilling speed, and also cool and lubricate the drill cutting tool. Its wear and tear, extending the life of the drill. However, the amount of flushing liquid is too large, and the liquid flow is sharply turned through the bottom of the drill bit, causing a large water pressure, increasing the water flow resistance, generating a large buoyancy force on the drill bit, reducing the effective pressure of the drill bit, resulting in a decrease in the drilling speed, and at the same time, the rock core and the hole wall. The scouring damage effect also increases, drilling in the soft rock layer, the core taking rate is reduced, and the hole wall collapse is aggravated, the pump wear is also increased, and the water supply amount is too small, causing the dust to accumulate at the bottom working face, causing the hole The amount of repeated crushing at the bottom increases, which increases the rotational resistance of the bottom of the cutting tool, accelerates the wear of the cutting tool, and even causes the accident of drilling, burning, and breaking the drill pipe.

In short, in the drilling production, it is necessary to determine the reasonable drilling technical parameters according to the actual situation, so as to improve the drilling speed and drilling efficiency and create higher drilling economic benefits.

Engineering and Technology Department work summary

2019 is an extraordinary year. In this year, it is also the year of the 20th anniversary of the establishment of our company. Our mood is jubilant and mixed with silence; joy is sad. On the occasion of the farewell 2014 to welcome 2015, our department carefully reviewed the work results and shortcomings of the past year. In order to make the future work in a higher level of quality and efficiency, we will summarize the main work completed this year. The following aspects:

First, personnel division of labor and cooperation, to complete the task together

Our technical department is an important department of the company. It is responsible for the drawing design, technical data collection and finishing of various engineering projects, as well as technical tracking and technical support for the construction of various engineering projects. This year, our department organized relevant technical personnel to implement various tasks to each individual, work together, work overtime, and finally complete the design tasks on time, thus ensuring that each project can be completed qualitatively and quantitatively. In order to provide designers with opportunities for practical learning, our department has planned to organize designers to the first line of production sites in a certain period of time, participate in practical exercise learning, thereby further improving the design level of designers and doing a good job in various projects. Technical tracking and technical support for the project. The projects involved in our department include:

1. Cooperate with the production department and engineering department to do a good job in repairing and renovating various equipments and processes such as waste heat power stations, hydropower stations and projects.

2. Complete the drawing design work of the project.

3. Follow up and do a good job in the construction of the project.

4. Do a good job in the design of the preliminary plan drawings for other projects.

5. Participate in the research and development and commissioning of new products and new equipment.

6. Plan and organize the publicity activities of the company's 20th anniversary celebration and the company's business promotion.

7. Do a good job in recording, archiving and statistical work of power generation data for each operating power station.

8. Maintenance of company office equipment and regional network.

Second, adhere to technological innovation, management is handy

Adhering to the innovative spirit of our company, our department's valuable experience in scientific and technological innovation has been more fully reflected! We have redesigned and developed the project as a “revolutionary base” for our design drawings and perfect processes. On the basis of the actual production situation on the site, many improvements have been made to consider the problems existing in xx and the problems that may arise in the future operation as much as possible, and combined with the practical experience we have mastered over the years. And technical knowledge, some designs have also passed many trials, trying to make the Hunan project achieve the goal of safety, efficiency, energy saving and environmental protection in the future operation.

We also put the system control concept in the waste heat power generation project, using advanced computer monitoring system and combined production process requirements, boldly inject these technologies into the Hunan project, and design and produce a set of more advanced monitoring. The system ensures that the control in the operation management is handy, and the overall technological content of the previous one has formed a huge difference, and at the same time further enhances the market competitiveness of our company.

Third, adhere to continuous learning and improve overall quality

In order to improve the overall quality of the personnel of the technical department and meet the needs of the company's long-term development and construction, our department will send personnel to go to the construction site to study and study, and provide technical support and guidance. In April this year, xxx was dispatched to Hainan Hydropower Station to participate in electrical technical support and guidance. After August, xxx was sent to the construction site of Hunan Fuyang for three consecutive sessions to provide training and technical support. He has also organized, visited, and other places to visit and study, collect data, organize materials, and participate in technological transformation work. I encourage employees to actively participate in the training of some professional courses. Through the theory and practice training for one year, the comprehensive ability of our staff has been improved. In the future, we will certainly do a good job in training of theory and practice. To consolidate, strengthen and improve the overall quality of our team.

Fourth, carry forward the fine style and improve the inadequacies

Through one year of hard work, we have made some new progress in our work. If we have achieved some achievements in the work of the technical department this year, we cannot do without the correct leadership of the company, the active cooperation between various departments, and the joint efforts of all employees of the technical department. . However, while we affirmed our achievements, we also saw areas for improvement and improvement. The specific performance is as follows: the overall quality of our team needs to be further improved; secondly, the rationalization of technical data and drawings and classification needs to be further strengthened; The problem is that we are not well thought out in the design process. Many problems are gradually revealed during construction or operation. This requires us to learn more about new processes, new knowledge, expand ideas and dare to innovate in practice. In the future, we will work hard to improve the comprehensive construction of our department, continue to carry forward the fine work style, improve the deficiencies, and gradually improve the above mentioned problems, and add another good result to the company.

We firmly believe that under the united efforts of everyone, the future of Qisheng will be more brilliant!

Summary of mechanical and electrical professional technical work

Time flies, unconsciously, more than 12 months of time hastily slipped away. Looking back on the past, there are some shortcomings in electromechanical work. We closely follow the safety production policy and conscientiously implement the "Safety Regulations for Coal Mines". People-oriented, keep pace with the times, pay close attention to management, and basically realize the safety, installation, stability and economy of electromechanical systems. And operate efficiently. Through this past work, we have accumulated a lot of work experience, and all aspects have been greatly enriched and improved. The report on the status of electromechanical work is now reported.

First, based on safety regulations, strengthen the standardization of mechanical and electrical safety and quality

Safety and quality standardization is the fundamental way for coal mines to improve their level and build a long-term mechanism for safe production. Only when safety and quality standardization meets and maintains certain standards, so that the company is in a good state of safe production, can it adapt and protect employees' life safety and modernization of coal industry. The need for construction. Starting from March, we took the worst-selling second-harvest area of ​​the Jiyun Lane as a breakthrough to build 2210 Yunxiang Lane, the second-series substation, the mechanical and electrical equipment of the mining area and the cable hanging standards, etc. This is the base point, which has set off a new round of quality standardization construction in the whole mine. Through the evaluation of the standard, a total of 3 "fine boutique rooms" and 2 "fine computer rooms" were selected.

Second, the completion of mechanical and electrical work

1. Since then, the Mechanical and Electrical Department has focused on the goal of creating a safety and quality standardization “Zhangzhou Demonstration Mine”. The standardization chamber reform of the secondary mining substation has been carried out successively, and the arrangement of high and low voltage equipment in the substation has been refined. The high and low voltage power cables and lighting hanging have realized “one line” and replaced the new plastic cable hooks. In the 3981 group, the rated high and low voltage cables and signal cables were 5971.5 meters. Achieve the hanging cable in a horizontal and vertical line. After the transformation, a new bright spot project was formed in the underground electromechanical chambers, alleys and mining area cables, which improved the level of downhole standardization.

2. Due to the constraints of geological conditions, the output of 1.8 million tons has made the installation of the coal mining face and the power supply system of the working face a key project for safe production. Completely completed the installation of the comprehensive equipment, water supply, installation of the air pressure system and power supply system of 2213 working face, 2200 working face, 2110 working face, 1203 working face and 22 working face 5 working faces safely and smoothly throughout the year; Safe and smooth completion of the 2213 working face, 2207 working face, 2209 working face, 2110 working face, 2200 mining face relief work, to achieve safe production of face-to-face, face-lift, power supply throughout the year.

3. Carefully organized and successfully completed the transformation of various electromechanical equipment:

In order to improve the calorific value of coal in our mine and solve the sales of coal in mine, the mechanical and electrical department has carried out the transformation of the under-belt of the ground production system, and the coal under the sieve belt has been transported, and a design has been reworked at the elevated belt. Overhead electric roller belt to solve the quality of coal quality and promote the sale of coal in mine.

Ventilation machine installation project: In May, according to the technical design requirements, two mine explosion-proof counter-rotating axial fan ventilators, 12 high-voltage power distribution cabinets and soft starter cabinets were installed on the mine ventilator fbcdzno.25/2250. The two circuits of the 10kv high-voltage power supply line of the ventilator were erected to realize the safe operation of the ventilator.

Installation of the compressed air system: In order to ensure the need for downhole pressure in the technical transformation construction, two sa-132a twin-screw air compressors are temporarily installed in the auxiliary shaft of the Xiliang District. The laying condition of the compressed air pipeline: the φ1594.5 seamless steel pipe is selected for the underground main pipe, and the φ1084 seamless steel pipe is used for the upper and lower mountain pipelines in the mining area. The existing main pipe φ1594.5 seamless steel pipe is laid 3965 meters, realizing the technical transformation. The pressure on the working face needs to improve the renovation of the self-rescue system.

, water supply rescue system pipeline installation project: Xiliang underground fire sprinkler and water transformation, using the 600m3 static pressure pool supply in the Xiliang District, remove the original Xiliang water supply pipeline φ502.5 seamless steel pipe 2130 meters. The φ1594.5 seamless steel pipe is selected for the construction of the underground water supply rescue main pipe. The φ1084 seamless steel pipe is used for the upper and lower mountain pipelines in the mining area. The existing main pipe φ1594.5 seamless steel pipe is laid 3550 meters, and the φ1084 seamless steel pipe is laid. 480 meters.

35kw substation installation project: The erection of ground 35kv substation in Xiliang District has been erected. The two 35kv power lines are respectively led from Xuangang 110kv substation and Xiangyang 110kv substation. The conductor section is lgj-185, and the line length is about 18.5km and 26.5. In addition to the two sz10-8000/3535±32.5%/10.5kv8000kva on-load tap-changer transformers in the substation, the other high-voltage electrical equipment has been installed.

Third, the completion of transportation work

1. To ensure the completion of mine production and production tasks with the purpose of service first line:

The transportation system safely and efficiently completed the transportation of five working face removal and installation equipment, and accumulated more than 2,520 sets of large equipment such as hydraulic supports. In the past year, we have laid a total of 2,570 meters of 18 kilograms of track and 1,200 meters of 24 kilograms of track for the mining area, ensuring the completion of the production tasks of the whole mine and the normal production of our mine.

2. Constantly improve the level of safe transportation by taking the opportunity of standardization:

In combination with the requirements of “Provincial Coal Mine Safety Quality Standardization Standard” and “Original Power Supply Bureau Energy Saving and Power Saving”, we installed and replaced led lights 120盏 for underground mines, transportation lanes and working faces, and laid 3,090 meters of lighting lines; We replaced all the original roads in 1171 Lane and Nanda Lane and replaced the turnout 21 pay.

Fourth, the completion of large-scale equipment maintenance work

The mine zyy4410/23/42 bracket is a group company's equipment, the bracket status is poor, the maintenance is frequent, and the underground overhaul brackets total 610; due to the tight production, the total overhaul mgtyz250/600-1.1d shearer 2 times; overhaul The ebz150 roadheader was used twice; the sm-490a air compressor was repaired 3 times; the 500gfb generator was overhauled once, and the total maintenance cost was about 7.01 million yuan.

5, 2019 electromechanical plan

In 2019, the mechanical and electrical installation engineering of technical transformation will enter a peak stage, and other mechanical and electrical tasks are also a long way to go. The main installation and construction projects of the mine west beam technical reform will be

Enter the final installation stage, such as the quantitative loading system, coal preparation system, installation of the drainage system and the strong belt installation of the collection lane, the installation of the pressure fan, the overhead passenger device, and the installation of the induction rope winch. For the mine's existing power supply system, there will be several major renovation projects during the year, such as 35kv substation transformer installation, Xiliang District 10kv overhead line installation, Gaobao Bay original 1 loop 10kv overhead line reconstruction project, underground The installation of substation and mining substation equipment and the laying and installation of underground power supply lines, main ventilation, central pump room, central substation, production system, etc.