Coke breeze processing device for wet quenching of coke oven

Abstract

The utility model relates to a coke breeze treatment device for wet quenching of a coke oven, which comprises a clean water tank and a sedimentation tank, the clean water tank and the sedimentation tank are sequentially connected, two sides of the clean water tank and the sedimentation tank are provided with ditches, and the ditches are used for leading quenching water sprayed in a quenching tower back to the coke breeze sedimentation tank to form a closed loop, so as to complete the recycling of the quenching water. Concrete partition walls are arranged between the clean water tank and the sedimentation tank, between the ditches and the clean water tank and between the ditches and the sedimentation tank, openings are formed in the concrete partition walls, and water gates are arranged at the openings and connected with the control unit. The coke powder grabbing device has the advantages that the grabbing device walks on the track and grabs the coke powder of the settling pond and the clean water pond, the coke powder does not need to be cleaned manually, the operation environment of operators is improved, the labor intensity of the operators is reduced, the post of the coke powder grab bucket operator is canceled, manpower is saved, the enterprise cost is reduced, and the working efficiency is improved. Operators are prevented from being in contact with toxic and harmful substances, and the operation environment of the operators is improved.

Description

Technical Field

[0001] This utility model relates to a coke powder treatment device for wet quenching of coke ovens. Background Technology

[0002] During the coking process, red-hot coke at approximately 1000 degrees Celsius must be cooled to below 200 degrees Celsius before it can be transported to the next stage of processing. Therefore, quenching is necessary. According to the operation mode, it is divided into dry quenching and wet quenching. At present, dry quenching is more commonly used in China. However, many coke production enterprises still use wet quenching equipment as a backup for dry quenching. When the dry quenching equipment malfunctions or needs annual maintenance, wet quenching is still used. For coking plants outside of China, wet quenching still accounts for a large proportion.

[0003] During the wet quenching process, since the heat exchange method involves direct contact between water and coke, the water after quenching is recycled and needs to be diverted. At the same time, the quenching water contains a large amount of coke powder particles, so the quenching water must be cleaned regularly to ensure the smooth operation of the entire system and avoid pipe blockage and equipment damage. The conventional cleaning method is to manually remove the coke powder.

[0004] Because the quenching water and steam produced during the quenching process contain a large number of harmful substances, manual cleaning of coke powder is detrimental to the health of operators. Coke powder is generally transported by truck, and the coke powder containing a certain amount of moisture is also prone to pollution during transportation. Utility Model Content

[0005] The purpose of this invention is to provide a coke powder treatment device for wet quenching of coke ovens, which eliminates the need for manual cleaning of coke powder, improves the operating environment for operators, reduces the labor intensity of operators, and reduces pollution.

[0006] To achieve the above objectives, this utility model employs the following technical solution:

[0007] A coke powder treatment device for wet quenching of coke ovens includes a clear water tank and a sedimentation tank, which are connected in sequence. Water ditches are provided on both sides of the clear water tank and the sedimentation tank. Concrete partition walls are provided between the clear water tank and the sedimentation tank, between the water ditches and the clear water tank, and between the water ditches and the sedimentation tank. The concrete partition walls have openings, and water gates are provided at the openings. The water gates are connected to the control unit.

[0008] There are multiple sedimentation tanks connected in sequence, with concrete partitions and openings between them.

[0009] The pump house, the water tank, the sedimentation tank, the dewatering table and the coke powder tank are sequentially connected, a water pump is arranged in the pump house, the water pump is used for circulating quenching water, a coke powder conveying device and a coke powder storage hopper are arranged in the coke powder tank, the coke powder conveying device is connected with the coke powder storage hopper, and the water pump and the coke powder conveying device are respectively connected with the control unit through ports.

[0010] The coke powder tank is provided with a material level sensor for detecting the material level in the coke powder storage hopper, and the coke powder conveying device is a belt conveyor.

[0011] The coke powder tank is provided with a material level sensor for detecting the material level in the coke powder storage hopper, and the coke powder conveying device is a belt conveyor.

[0012] The control unit comprises a PLC system, and the water gate is a stainless steel water gate.

[0013] Compared with the prior art, the coke powder tank is provided with a material level sensor for detecting the material level in the coke powder storage hopper, and the coke powder conveying device is a belt conveyor.

[0014] 1. The concrete partition wall and the opening are arranged between the water tank and the sedimentation tank, between the water ditch and the water tank, and between the water ditch and the sedimentation tank, the water gate is arranged at the opening, the water gate can realize the shunting of quenching water, the structure is simple, and the shunting of quenching water is realized.

[0015] 2. The coke powder conveying device and the coke powder storage hopper are arranged in the coke powder tank, so that the problem that the environment is easily polluted during the external transportation of coke powder containing a certain amount of water is avoided.

[0016] 3. The grabbing device is arranged on the track above the sedimentation tank and the water tank, the corrosion of water vapor in the sedimentation tank and the water tank to the equipment is reduced, the maintenance environment is relatively good, and the lower space is not occupied.

[0017] 4. The grabbing device walks on the track, the coke powder in the sedimentation tank and the water tank is grabbed through the grabbing device, manual coke powder cleaning is not needed, the operation environment of the operator is improved, the labor intensity of the operator is reduced, the coke powder grabbing operation post is cancelled, manpower is saved, enterprise cost is reduced, the operator is prevented from contacting toxic and harmful substances, and the operation environment of the operator is improved.

[0018] 5. The concrete partition wall and the opening are arranged between the water ditch, the first sedimentation tank, the second sedimentation tank, the third sedimentation tank and the water tank, the water gate is arranged at the opening, the shunting of quenching water is realized through different opening and closing combinations of the water gate, the shunting of quenching water is a necessary measure for realizing the reflux and sequential in-out of the quenching water in the sedimentation tank, and the sedimentation tank is also a necessary measure for being separated from other water tanks and sedimentation tanks during maintenance.

[0019] 6, water pump, coke powder conveying device, water gate, grabbing device and control unit connection, central control operator can check the equipment running state at any time, maintenance time saving. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the coke powder treatment device of coke oven wet quenching.

[0021] Figure 2 is the coke powder treatment device of coke oven wet quenching.

[0022] Figure 3 is the coke powder treatment device of coke oven wet quenching.

[0023] Figure: 1- water gate 1 2- water gate 2 3- water gate 3 4- water gate 4 5- water gate 5 6- water gate 6 7- water gate 7 8- water gate 8 9- water gate 9 10- water gate 10 11- water gate 11 12- after drying and dehydration of coke powder 13- coke powder storage hopper 14- grabbing device 15- coke powder conveying device 101- coke oven control room 201- remote control PLC 202- wireless signal transmission and reception ground base station 203- grabbing device vehicle-mounted wireless transceiver 301- water gate control cabinet 302- coke powder storage hopper weighing and material level, coke powder conveying control system 303- vehicle-mounted and ground base station. DETAILED DESCRIPTION

[0024] The utility model will be described in detail below in conjunction with the drawings of the specification, but it should be pointed out that the implementation of the utility model is not limited to the following embodiments.

[0025] The following examples are implemented on the premise of the technical scheme of the utility model, and detailed implementation modes and specific operation processes are given, but the protection scope of the utility model is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.

[0026]

Example 1

[0027] See Figure 1 , Figure 2The application relates to a coke powder treatment device for coke wet quenching, which is applied to various top-charging and stamping coke oven projects of new construction, reconstruction and expansion with a coke wet quenching system, and comprises a pump house, a clean water pool, a sedimentation pool I, a sedimentation pool II, a sedimentation pool III, a dehydration table, a coke powder pool, a coke powder grabbing device 14 and a track, wherein the pump house, the clean water pool, the sedimentation pool I, the sedimentation pool II, the sedimentation pool III and the dehydration table are sequentially connected, two sides of the clean water pool, the sedimentation pool I, the sedimentation pool II and the sedimentation pool III are respectively provided with a water ditch I and a water ditch II, the water ditch I is connected with a coke quenching tower, the water ditch II is connected with the sedimentation pool and the clean water pool respectively, is a reflux channel of coke quenching water, and after coke quenching water is pumped out through a water pump and a pipeline for coke quenching, the coke quenching water sequentially passes through the coke quenching tower, the water ditch, the sedimentation pool and the clean water pool and is then pumped out by the water pump to a spraying system at the upper part of the coke quenching tower for coke quenching, concrete partition walls are arranged between the sedimentation pool I, the sedimentation pool II and the sedimentation pool III, between the clean water pool and the sedimentation pool, between the water ditch and the clean water pool, and between the water ditch and the sedimentation pool I, the sedimentation pool II and the sedimentation pool III, the concrete partition walls are provided with openings, water gate valves are arranged at the openings, the water gate valves are stainless steel water gate valves, a water pump is arranged in the pump house and is used for recycling of the coke quenching water, a coke powder conveying device 15 and a coke powder storage hopper 13 are arranged in the coke powder pool, the coke powder conveying device 15 is connected with the coke powder storage hopper 13, the coke powder storage hopper 13 is provided with a material level sensor and a weighing device, the material level sensor is used for detecting the material level in the coke powder storage hopper 13, and the weighing device is used for measuring, accumulating and recording the coke powder quantity for external transportation, and the coke powder conveying device 15 adopts a belt conveyor.

[0028] The water gate valves, the water pump, the coke powder conveying device 15 and the grabbing device 14 are connected with a control unit. Figure 3 The control unit is divided into three levels, the three levels comprise a field data acquisition layer, a network communication layer and a main station management layer, the field data acquisition layer is composed of the water gate valves, the coke powder storage hopper 13 and the weighing device, the coke powder conveying device 15 and the coke powder grabbing device 14; the network communication layer comprises a vehicle-mounted PLC machine and a wireless transceiving device 203 of the coke powder grabbing device 14, a water gate valve control cabinet 301 and the coke powder storage hopper 13 and a weighing system 302, a remote control PLC 201 of the coke powder conveying system and a wireless signal transmitting and receiving ground base station 202 (the ground wireless base station can utilize an existing coke oven machine); and the main station management layer is located in a coke oven central control room 101 and can utilize old hardware modules and software systems in the central control room. Figure 3, embedded in the coke oven control system (the part in the dashed line box, using MODBUS-TCP communication interface; the powder coke storage tank and weighing system, powder coke output device, and water gate share one PLC, which is set in the control room of the quenching water pump and can exchange signals with the coke oven control room, using optical fiber or hard-wire connection; the software system is used for detection and early warning, data processing and storage, data reception, and equipment control.

[0029] The signal exchange of the powder coke grabbing device 14 is in a wireless output mode, and a combination of the vehicle-mounted base station and the ground base station 303 (the ground base station can use the existing wireless base station of the coke oven machinery) is used to realize real-time exchange of data; the powder coke grabbing device 14 is also provided with a position recognition module, which cooperates with a grid position reading device to divide the sedimentation tank, the clean water tank, and the dehydration table into fixed grid structures, to realize real-time positioning and trajectory description and complete operations at different positions; the powder coke grabbing device 14 is provided with a vehicle-mounted PLC.

[0030] The working process is as follows:

[0031] The sedimentation tank 1, the sedimentation tank 2 and the sedimentation tank 3 are in working state, the quenching water flows through the sedimentation tank 3, the sedimentation tank 2 and the sedimentation tank 1 in turn, the water gate 1, the water gate 3, the water gate 4, the water gate 6 and the water gate 10 are in open state, and the rest of the water gates are in closed state; the quenching water completes the reflux and sedimentation process through the water gate 4, the water gate 10, the water gate 3 and the water gate 6, and finally reaches the clean water tank; for each sedimentation tank, the quenching water passes through the diagonal distance, so that the sedimentation time is long, the effect of coke powder sedimentation is good, the content of coke powder in the quenching water entering the clean water tank is small, and the influence on the quenching water pump and the pipeline is minimum; when a sedimentation tank needs to be thoroughly cleaned and maintained, different water gates are switched to achieve this, as follows: when the sedimentation tank 2 needs to be maintained, the open water gates are the water gate 4, the water gate 10-1, the water gate 7, the water gate 1, and the rest of the water gates are in closed state; the quenching water flows into the sedimentation tank 3 through the water ditch 1, and then flows into the sedimentation tank 1 through the water gate 10-1, the water ditch 2 and the water gate 7, and finally flows into the clean water tank through the water gate 1, still flowing in the diagonal direction of the sedimentation tank 1 and the sedimentation tank 3 to achieve the best sedimentation effect; the water route is switched by using different combinations of open and closed water gates; the coke powder collection and dehydration operation is as follows: since the grab bucket has a fixed volume, and the sizes of the sedimentation tank and the clean water tank are also fixed, the sedimentation tank and the clean water tank are divided into small areas (working positions) by the position positioning module and the ground sensor; in operation, the coke powder grabbing device 14 walks on the track, and the coke powder grabbing device 14 sequentially cleans the sedimentation tank and the clean water tank according to the fixed path and position on the track, and places the grabbed coke powder on the coke powder dehydration table in turn; the coke powder loading and delivery: after a fixed time of dehydration, the coke powder grabbing device 14 grabs and places the dehydrated coke powder in the coke powder storage hopper 13, the coke powder storage hopper 13 is provided with a contact type level meter and a weighing device, when the coke powder in the storage hopper reaches a high level, the coke powder output device can be started, and the loading of the coke powder grabbing device 14 is stopped, the dehydrated coke powder is output to the next section, the weight of the delivered coke powder is measured by the weighing system, and is recorded, when the weight of the coke powder in the coke powder storage hopper 13 approaches the empty weight, the control system informs the coke powder grabbing device 14 to continue the loading operation, and the above process is also cyclically performed. The operation of the coke powder grabbing device 14 is set to collection and dehydration mode and loading mode, which can be manually selected remotely, or can be performed in time periods according to the operation time of each shift.

[0032] The utility model discloses a concrete partition and opening are equipped between the clear water pool and the depositing pool, between the water ditch and the clear water pool, between the water ditch and the depositing pool, the opening all is equipped with water gate, adopts water gate to be able to realize the shunt of quenching water, simple structure, easily realizes, be equipped with powder coke conveying device and powder coke storage hopper in powder coke pool, avoided the problem that the environment pollution is easily caused in the external transport of containing certain moisture's coke powder during external transport of car, the track on the above of depositing pool and clear water pool is arranged to the grabbing device, reduces the corrosion of water vapor in depositing pool and clear water pool to equipment, the maintenance environment is relatively better, does not occupy the space below, the grabbing device walks on the track, and the coke powder of depositing pool and clear water pool is grabbed through the grabbing device, does not need manual cleaning coke powder, improves the operating environment of operating worker, reduces the labor intensity of operating personnel, cancels powder coke grab bucket operating worker post, saves manpower, reduces the enterprise cost, avoids operating personnel to contact toxic and harmful substance, improves operating personnel operating environment, the concrete partition and opening are equipped between water ditch, depositing pool one, depositing pool two, depositing pool three and clear water pool, and the opening is equipped with water gate, realizes the shunt of quenching water through the different open-close combination of water gate, and the shunt of quenching water is the necessary measure for realizing the reflux and sequential in and out of depositing pool, is also the necessary measure for separating depositing pool from other clear water pool, depositing pool when overhauling, water pump, powder coke conveying device, water gate, grabbing device are connected with control unit, and the operating state of equipment can be checked at any time by the central control operating personnel, and maintenance saves time and effort.

Claims

1. A coke powder treatment device for coke wet quenching of a coke oven, characterized by, The water tank, the sedimentation tank, the water ditch, the concrete partition wall, the water gate, and the control unit are as described above.

2. A coke handling device for wet quenching of coke from a coke oven according to claim 1, characterized in that The plurality of sedimentation tanks are connected in sequence, and the concrete partition walls and openings are arranged between the sedimentation tanks.

3. A coke handling device for wet quenching of coke from a coke oven according to claim 1, characterized in that, The pump house, the water tank, the sedimentation tank, the dehydration table, and the coke powder tank are connected in sequence, a water pump is arranged in the pump house, the water pump is used for circulating quenching water, a coke powder conveying device and a coke powder storage hopper are arranged in the coke powder tank, the coke powder conveying device is connected with the coke powder storage hopper, and the water pump and the coke powder conveying device are respectively connected with the control unit through ports.

4. A coke handling device for wet quenching of coke from a coke oven according to claim 3, characterized in that The track is arranged above the water tank, the sedimentation tank, the dehydration table, and the coke powder tank, the grabbing device walks on the track, and the grabbing device is connected with the control unit through the ports.

5. A coke handling device for wet quenching of coke from a coke oven according to claim 4, characterized in that The coke powder storage hopper is provided with a material level sensor for detecting the material level in the coke powder storage hopper, and the coke powder conveying device is a belt conveyor.

6. A coke handling device for wet quenching of coke from a coke oven according to claim 1, characterized in that, The grabbing device is a double-beam grab crane, the track includes a long-direction (X-direction) running track and a short-direction (Y-direction) running track, and the long-direction running track penetrates through the water tank, the sedimentation tank, the dehydration table, and the coke powder tank. The control unit includes a PLC system, and the water gate is a stainless steel water gate.

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