A tar residue collection, loading, transportation, and unloading system and process

Abstract

The present invention relates to the technical field of tar slag treatment in the coking industry, and in particular to a tar slag collection, loading, transportation, and unloading system and process. It includes a screw conveyor, a temporary slag storage tank, a plunger pump system, a loading sealing device, a tar slag mobile storage hopper, an AGV trolley, a unloading device, and a receiving hopper; one or more feed ports of a screw conveyor are connected to the slag discharge ports of one or more scraper troughs through pipeline seals, and one or more screw conveyor discharge ports are connected to the temporary slag storage tank pipeline seals; the temporary slag storage tank is connected to the plunger pump system, and the main outlet pipeline of the plunger pump system is connected to the tar slag mobile storage hopper through a loading sealing device; the tar slag mobile storage hopper is placed on the AGV trolley and transported to the receiving hopper by the AGV trolley; the unloading device flips the tar slag mobile storage hopper and pours the tar slag into the receiving hopper. The tar slag collection, loading, transportation, and unloading process is fully sealed, harmless, mechanized, and automated.

Description

Technical Field

[0001] The invention relates to the technical field of tar residue treatment in the coking industry, and in particular to a tar residue collection, loading, transportation and unloading system and process. Background Art

[0002] At present, a large amount of tar slag is produced in the production of coking enterprises. As a kind of waste, tar slag is discharged through the slag outlet of the tar ammonia clarification machine scraper trough, and then collected and processed. This is a common method adopted by most coking enterprises. Generally, a cement tank is placed under the slag outlet of the tar ammonia clarification tank, and the tar slag is manually taken out into the tar slag box, and then transported to the tar slag box tar slag placement point to dump the tar slag.

[0003] Due to the high viscosity of tar residue and long discharge time, a large amount of toxic and harmful gases such as ammonia and naphthalene are discharged along with the tar residue. The direct discharge between the slag outlet of the tar ammonia clarification tank and the cement tank has caused great pollution to the environment and posed a threat to the health of workers.

[0004] Because tar residue boxes are difficult to transport and take a long time to go back and forth, and workers are in close contact with the tar residue boxes, the environment is repeatedly polluted during transportation. The action of dumping the tar residue is cumbersome and the box is easily covered with tar. The technology for handling tar residue is backward, causing serious environmental pollution, failing to meet the national requirements for pollutant treatment, and is not convenient for the utilization of tar residue. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a tar residue collection, loading, transportation and unloading system and process, which realizes the full sealing and harmlessness of the tar residue aggregation, loading, transportation and unloading processes, and realizes the mechanization and automation of the tar residue aggregation, loading, transportation and unloading.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A tar slag collection, loading, transportation and unloading system comprises a screw conveyor, a temporary slag storage tank, a plunger pump system, a loading sealing device, a tar slag mobile storage hopper, an AGV trolley, a unloading device and a receiving hopper; one or more feed ports of a screw conveyor are sealedly connected to the slag discharge ports of one or more scraper troughs through a pipeline, and the unloading ports of one or more screw conveyors are sealedly connected to the pipeline of the temporary slag storage tank; the temporary slag storage tank is connected to the plunger pump system, and the main outlet pipeline of the plunger pump system is sealedly connected to the tar slag mobile storage hopper through the loading sealing device; the tar slag mobile storage hopper is placed on the AGV trolley and transported to the receiving hopper by the AGV trolley; the unloading device turns over the tar slag mobile storage hopper and pours the tar slag into the receiving hopper.

[0008] The top of the temporary slag storage tank is sealed and connected to the discharge port of the screw conveyor through a pipeline, and a hot water pipe is spirally distributed outside the temporary slag storage tank. The discharge port at the bottom of the slag storage tank is connected to a gate valve, and an expansion joint is connected below the gate valve, and the expansion joint is connected to the plunger pump system.

[0009] The main outlet pipeline of the plunger pump system is provided with a valve, and a branch pipeline is provided to be connected with the scraping trough, and the branch pipeline is provided with a valve.

[0010] The tar slag mobile storage hopper includes a frame, a hopper body, a counterweight lever and a sealing cover; the hopper body is fixed in the frame, and the side of the hopper body is semi-spiral; the counterweight lever and the sealing cover are installed on the rotating shaft, and the rotating shaft is installed on the frame; there is a slot on each side of the frame, and a column foot is provided at the bottom; an electric gate valve and a level meter are installed on the sealing cover, a water seal groove is provided above the electric gate valve, and a sealing ring is provided around the bottom of the sealing cover.

[0011] The loading sealing device includes a sealing cover, a metal hose, an exhaust pipe and a first hydraulic cylinder; the sealing cover is fixedly connected to the push rod of the first hydraulic cylinder, the top of the sealing cover is provided with an inverted funnel-shaped closing, and the bottom is provided with a horizontal annular knife beam, one end of the metal hose is connected to the main outlet pipeline of the plunger pump system, and the other end extends into the sealing cover from the closing of the sealing cover; one end of the exhaust pipe is connected to the closing, and the other end is connected to the negative pressure exhaust pipe.

[0012] A flat bumper is arranged in the front of the AGV trolley, and a square cone groove is arranged on the top surface.

[0013] The unloading device includes a flip body, a rack and a second hydraulic cylinder; one end of the flip body is provided with an insertion strip, and the other end is provided with a semicircular gear, the flip body is hinged on the receiving hopper, the semicircular gear is meshed with the rack, the rack is fixedly connected to the second hydraulic cylinder push rod, and the second hydraulic cylinder base is fixedly connected to the receiving hopper.

[0014] A process for collecting, loading, transporting and unloading tar residues, comprising the following steps:

[0015] 1) The tar slag is discharged through the slag discharge port of the tar ammonia clarification machine scraper trough, enters the screw conveyor from the inlet of the screw conveyor, is transported and collected by the screw conveyor, and is discharged into the temporary slag storage tank from the discharge port of the screw conveyor;

[0016] 2) The tar slag mobile storage hopper is placed on the AGV trolley. The AGV trolley drives to the bottom of the charging sealing device. The electric gate valve of the sealing cover of the tar slag mobile storage hopper is opened. The hydraulic cylinder of the charging sealing device pushes the horizontal annular knife beam downward and inserts it into the water seal groove to achieve sealing;

[0017] 3) The tar slag in the temporary slag storage tank is pumped into the metal hose of the charging sealing device through the plunger pump system through the main outlet pipeline of the plunger pump system, and then injected into the tar slag mobile storage hopper through the metal hose; the amount of tar slag in the tar slag mobile storage hopper is measured by a level meter, and when the amount reaches the set value, the valve on the main pipeline is closed to stop injecting tar slag into the tar slag mobile storage hopper;

[0018] 4) The electric gate valve of the sealing cover is closed, and the first hydraulic cylinder of the charging sealing device drives the horizontal annular knife beam to move upward and leave the water seal groove;

[0019] 5) If the water accumulation in the temporary slag storage tank exceeds the set value, close the main pipeline valve at the outlet of the plunger pump system, open the branch pipeline valve, and pump the accumulated water into the scraper tank of the tar ammonia clarification machine through the plunger pump system;

[0020] 6) The AGV trolley carries the tar slag mobile storage hopper to the receiving hopper, inserts the unloading device inserts into the slots on both sides of the tar slag mobile storage hopper, and the second hydraulic cylinder of the unloading device drives the tar slag mobile storage hopper to flip, and the sealing cover of the storage hopper is driven to open by the counterweight lever, and the tar slag in the storage hopper is poured into the receiving hopper.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The scraping trough of the tar ammonia clarification machine of the present invention is sealed with a screw conveyor through a pipeline, and the screw conveyor is sealed with a temporary slag storage tank through a pipeline, and the sealing of the tar slag from the temporary slag storage tank into the tar slag mobile storage hopper is achieved through a loading sealing device.

[0023] The present invention realizes the whole process of sealing the tar residue from the slag discharge port of the tar ammonia water clarification mechanical scraper trough to the receiving hopper, and the drainage and exhaust are both extracted through pipelines. There is no overflow of waste residue, waste water and waste gas in the whole process, and the whole process is harmlessly treated, which is beneficial to environmental protection.

[0024] 2. The hot water pipes are spirally distributed on the outside of the temporary slag storage tank of the present invention, which can heat the materials in the temporary slag storage tank. The discharge port at the bottom of the slag storage tank is a pipeline discharge, which is connected to a fully sealed electro-hydraulic gate valve. A stainless steel expansion joint is connected below the gate valve to offset thermal deformation.

[0025] 3. The outlet main pipeline of the plunger pump system of the present invention is provided with a branch pipeline connected to the scraper tank, and the branch pipeline is provided with a valve; if there is a lot of water accumulated in the temporary slag storage tank, it can be pumped back to the scraper tank of the tar ammonia clarification machine through the branch pipeline by the plunger pump system; the exhaust pipe of the charging sealing device is connected to the negative pressure exhaust pipe of the scraper tank of the tar ammonia clarification machine to facilitate the discharge of waste gas, and a valve is provided to prevent gas leakage when not working.

[0026] 4. The mobile storage hopper for tar slag of the present invention is provided with a sealing cover on the top, an electric gate valve and a material level meter are installed on the sealing cover, a water seal groove is provided above the electric gate valve, a sealing ring is provided around the bottom of the sealing cover, and a loading sealing device is also provided; the sealing of the process of loading the tar slag from the temporary slag storage tank into the mobile storage hopper for tar slag is ensured, and no waste slag, waste water or waste gas overflows.

[0027] 5. The present invention is provided with a loading sealing device, an AGV trolley and a unloading device; the whole process of loading the tar slag from the temporary slag storage tank into the mobile storage hopper, transporting it to the receiving hopper, and unloading the tar slag from the mobile storage hopper into the receiving hopper is mechanized and automated, which not only reduces the labor intensity of the operators, but also ensures the personal safety of the operators, and at the same time improves the operating efficiency.

[0028] 6. The present invention uses AGV trolleys for transportation. The AGV trolleys are equipped with electromagnetic automatic guidance devices and can travel along the specified guidance path. They are transport vehicles with safety protection and various transfer functions. Three AGVs, a control computer (console), navigation equipment, charging equipment and peripheral accessories form an AGV system. Under the monitoring and task scheduling of the control computer, the AGV trolley can accurately walk along the specified path. After arriving at the specified task location, it completes a series of work tasks. The control computer can decide whether to go to the charging area for automatic charging based on the AGV's own power.

[0029] 7. The mobile storage hopper for tar residue is equipped with column feet to support the storage hopper. There is an inverted square cone on the AGV trolley frame. The bottom of the square cone is the column foot size + 1mm tolerance. When the mobile storage hopper is lowered onto the AGV trolley frame, it can be automatically centered without the need to use various detection instruments to determine whether the storage hopper has returned to its position.

[0030] 8. A flat bumper is made in front of the AGV frame, with an angle of ±60 degrees on both sides of a width of 1 meter. A guide frame and positioning slots are installed on the ground in the target area to ensure that the parking accuracy of the AGV is within 10mm. This not only ensures the parking accuracy of the AGV, but also reduces the cost investment of various measurements and remote control equipment used for positioning accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic front view of the structure of the collecting and loading part of the present invention;

[0032] Figure 2 for Figure 1 A partial enlarged view of

[0033] Figure 3 It is a schematic side view of the structure of the collecting and loading part of the present invention;

[0034] Figure 4This is a schematic front view of the tar slag mobile storage hopper and the AGV trolley structure of the present invention;

[0035] Figure 5 It is a schematic side view of the structure of the tar slag mobile storage hopper and the AGV trolley of the present invention;

[0036] Figure 6 This is a schematic top view of the tar slag mobile storage hopper and the AGV trolley structure of the present invention;

[0037] Figure 7 It is a schematic diagram of the structure of the tar slag mobile storage hopper, AGV trolley, unloading device and receiving hopper of the present invention.

[0038] In the figure: 1-shaftless screw conveyor; 2-temporary slag storage tank; 3-charging sealing device; 4-tar slag mobile storage hopper; 5-AGV trolley; 6-unloading device; 7-collecting hopper; 8-tar ammonia clarification mechanical scraping trough; 9-plunger pump system; 10-negative pressure exhaust gas pipeline; 21-hot water pipe; 22-fully sealed electro-hydraulic gate valve; 23-expansion joint; 101-electric ball valve; 31-sealing cover; 32-metal hose; 33-exhaust pipe; 34-first hydraulic cylinder; 41-frame; 42-bucket body; 43-counterweight lever; 44-sealing cover; 441-electric gate valve; 442-water seal groove; 45-slot; 46-column foot; 47-rotating shaft; 51-conical groove; 52-collision head; 61-rack; 62-second hydraulic cylinder; 63-insert bar; 64-semicircular gear; DETAILED DESCRIPTION

[0039] Example:

[0040] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings:

[0041] like Figure 1-7 As shown, a tar slag collection, loading, transportation and unloading system includes a shaftless screw conveyor 1, a temporary slag storage tank 2, a loading sealing device 3, a tar slag mobile storage hopper 4, an AGV trolley 5, a unloading device 6, a receiving hopper 7 and a plunger pump system 9.

[0042] There are two shaftless screw conveyors 1 and four tar ammonia clarification machine scraper troughs 8 symmetrically distributed in pairs. The slag discharge ports of the two tar ammonia clarification machine scraper troughs 8 on the left are respectively connected to the two feeding ports on the top of the shaftless screw conveyor 1 on the left through φ159 pipe seals, and the slag discharge ports of the two tar ammonia clarification machine scraper troughs 8 on the right are respectively connected to the two feeding ports on the top of the shaftless screw conveyor 1 on the right through φ159 pipe seals. The discharge ports of the shaftless screw conveyors 1 on the left and right sides are respectively connected to the feeding ports on the top of the temporary slag storage tank 2 through φ159 pipe seals, and the materials are uniformly collected from the discharge ports of the shaftless screw conveyors 1 to the temporary slag storage tank 2.

[0043] The outside of the temporary slag storage tank 2 is heated by a spirally distributed hot water pipe 21. The discharge port at the bottom of the slag storage tank is a φ450 pipeline discharge, connected to a 450 fully sealed electro-hydraulic gate valve 22, and a stainless steel expansion joint 23 is connected below the gate valve to offset thermal deformation.

[0044] The diameter of the expansion joint 23 is reduced to φ219 pipe below to enter the plunger pump system 9. The plunger pump system 9 adopts the ASBN-7 secondary structure plunger pump system. The plunger pump system 9 can stably pump out semi-solid and semi-liquid viscous liquids such as tar slag, and lift and transport tar slag. The main outlet pipeline of the plunger pump system 9 is a φ70 steel pipe, and a branch pipeline is set, and the branch pipeline is also a φ70 steel pipe.

[0045] Electric ball valves 101 are provided on the outlet main pipeline and branch pipeline of the plunger pump system 9. When the incoming material is tar slag, the electric ball valve 101 on the main pipeline is opened, the electric ball valve 101 on the branch pipeline is closed, and the tar slag passes through; when the incoming material is water or there is a lot of water accumulated in the temporary slag storage tank 2, the electric ball valve 101 on the main pipeline is closed, the electric ball valve 101 on the branch pipeline is opened, and the accumulated water is pumped back to the tar ammonia clarification mechanical scraper tank 8 by the plunger pump system 9 through the branch pipeline.

[0046] The tar slag mobile storage hopper 4 includes a frame 41, a hopper body 42, a counterweight lever 43 and a sealing cover 44. Six column feet 46 are provided at the bottom of the frame 41 to support the storage hopper. There are six 45-degree inverted square cone grooves 51 on the frame of the AGV trolley 5. The bottom of the square cone groove 51 is the size of the column foot 46 + 1mm tolerance. When the tar slag mobile storage hopper 4 is lowered onto the frame of the AGV trolley 5, it can be automatically centered without using various detection instruments to determine whether the storage hopper is in place.

[0047] The bucket body 42 is fixedly connected in the frame 41, and the side of the bucket body 42 is semi-spiral, which is convenient for pouring out the tar slag. There is a slot 45 on each side of the frame 41, which is used for fixing the tar slag mobile storage bucket 4 when pouring.

[0048] A rotating shaft 47 is arranged at a right angle to the outer side of the tar slag mobile storage hopper frame 41, a sealing cover 44 of the tar slag mobile storage hopper is fixed to one end of the rotating shaft 47, and a counterweight lever 43 is fixed to the other end of the rotating shaft. In this way, the sealing cover 44 can be fully opened as the tar slag mobile storage hopper 4 is tilted.

[0049] The sealing cover 44 of the mobile storage hopper for tar slag is equipped with an electric gate valve 441. When the electric gate valve 441 is opened, a large enough hole is exposed to ensure the discharge of tar slag and the collection and negative pressure discharge of waste gas. A water seal groove 442 is arranged above the electric gate valve 441 on the sealing cover of the mobile storage hopper for tar slag. A rubber sealing ring is bonded to the part where the lower periphery of the sealing cover 44 of the mobile storage hopper for tar slag intersects with the storage hopper body to make the storage hopper tightly sealed. A thundering material level meter is installed on the sealing cover 44 of the mobile storage hopper for tar slag to measure the tar slag storage in the mobile storage hopper for tar slag. When the material level requirement is reached, the tar slag stops feeding.

[0050] The charging sealing device 3 includes a sealing cover 31, a metal hose 32, an exhaust pipe 33 and a first hydraulic cylinder 34. The sealing cover 31 is fixedly connected to the push rod of the first hydraulic cylinder 34. The top of the sealing cover 31 is provided with an inverted funnel-shaped closing, and the bottom is provided with a horizontal annular knife beam. One end of the metal hose 32 is connected to the outlet main pipeline of the plunger pump system 9, and the other end extends from the sealing cover closing into the sealing cover 31; the exhaust pipe 33 is made of a metal hose, one end of which extends into the closing, and the other end is connected to the negative pressure exhaust pipe 11. The horizontal annular knife beam is inserted into the water seal groove 442 to play a sealing role.

[0051] A flat bumper 52 is formed in front of the AGV 5 frame, with an angle of ±60 degrees on both sides of a width of 1 meter. A guide frame and a positioning slot are installed on the ground of the target area to ensure that the parking accuracy of the AGV is within the range of 10mm. This not only ensures the parking accuracy of the AGV, but also reduces the cost investment of various measurements and remote control equipment for positioning accuracy.

[0052] The AGV trolley 5 is equipped with an electromagnetic automatic guidance device, which can travel along the specified guidance path. It is a transport vehicle with safety protection and various transfer functions. Three AGVs, a control computer (console), navigation equipment, charging equipment and peripheral accessories form an AGV system. Under the monitoring and task scheduling of the control computer, the AGV trolley 5 can accurately travel along the specified path, and after arriving at the specified task location, it can complete a series of work tasks. The control computer can decide whether to go to the charging area for automatic charging based on the AGV's own power.

[0053] The AGV trolley 5 adopts a four-wheel structure with two rear wheels independently driven for differential steering and two front wheels as universal wheels. The stepper motor provides driving force through the drive wheel after passing through the reducer, and differential steering can be achieved when the two wheels move at different speeds.

[0054] ① The body of the AGV 5 consists of a chassis, a frame, a shell, a control room, and corresponding mechanical and electrical structures such as a reduction box, an integrated closed-loop stepper motor, wheels, etc. It is the basic part of the AGV 5. It has the structural characteristics of an electric vehicle and the special requirements of unmanned automatic operation. The frame is usually welded with steel components, and the lower the center of gravity, the more conducive it is to anti-rollover. The board is equipped with a transfer device, an electronic control system, buttons, a display screen, etc.

[0055] ② The frame is the body of the entire AGV 5, mainly used to install wheels, light sensors, servo motors and reducers. The servo motor driver, PCD board and battery are installed on the frame. The frame is designed with cast aluminum alloy, grade 6061, which has sufficient strength and hardness, is relatively light and has good weldability.

[0056] ③The wheels are made of solid rubber tires. The two driving wheels at the rear of the vehicle body are fixed driving wheels, connected to the hub motor. The two follower wheels at the front are rotating follower wheels, which play the role of supporting and balancing the vehicle.

[0057] ④ In order to avoid collisions when the AGV system fails or people pass through the working route of the AGV, the AGV is generally equipped with obstacle detection and collision avoidance, alarm sound, alarm vision, emergency stop and other devices. In addition, there are auxiliary devices such as automatic charging.

[0058] ⑤ The control console uses an ordinary PC. The control console receives the AGV 5 transportation task issued by the main control computer through the computer network, and collects the status information of each AGV 5 in real time through the wireless communication system. According to the demand and the current operation status of each AGV, the dispatch command is passed to the selected AGV 5. After completing a transportation task, the AGV 5 waits for the next task at the standby station. In order to speed up the wireless communication between the control console and the AGV 5 and the scheduling of the AGV 5 based on this, the multi-threaded mode is used in the programming, so that the communication and scheduling modules do not affect each other, and the system speed is accelerated.

[0059] ⑥ On the one hand, the communication system accepts commands from the monitoring system and transmits them to other corresponding subsystems in a timely and accurate manner to complete the actions specified by the monitoring system; on the other hand, it receives feedback from each subsystem and sends it back to the monitoring system as the basis for coordination, management, and control of the monitoring system.

[0060] ⑦ The function of the AGV navigation system is to ensure that the AGV 5 walks along the correct path and ensures a certain walking accuracy. The AGV 5 adopts a fixed route guidance method using electromagnetic guidance.

[0061] ⑧AGV car 5 uses battery as the only power source used. It is used to drive the car body and the auxiliary devices on the car, such as control, communication, safety, etc.

[0062] The unloading device 6 includes a turning body, a rack 61 and a second hydraulic cylinder 62; a plug 63 is provided at one end of the turning body, and a semicircular gear 64 is provided at the other end. The turning body is hinged on the receiving hopper 7, and the semicircular gear 64 is meshed with the rack 61. The rack 61 is fixedly connected to the push rod of the second hydraulic cylinder 62, and the base of the second hydraulic cylinder 62 is fixedly connected to the receiving hopper 7. The extension and contraction of the rack 61 is driven by the second hydraulic cylinder 62, and the extension of the rack 61 drives the semicircular gear 64 to rotate. The tar residue moving storage hopper 4 is driven by the plug 63 and rotates with the gear 64 as the center of the circle. The storage hopper naturally turns over, and the sealing cover 44 of the storage hopper is driven to open by the counterweight lever 43, and all the tar residue in the storage hopper is dumped into the receiving hopper 7.

[0063] A tar residue collection, loading, transportation and unloading process specifically comprises the following steps:

[0064] 1) The tar residue is discharged through the slag discharge port of the tar ammonia clarification mechanical scraper trough 9, enters the shaftless screw conveyor 1 through the feed port of the shaftless screw conveyor 1, is transported and collected by the shaftless screw conveyor 1, and the tar residue is uniformly discharged into the temporary slag storage tank 2 through the discharge port of the shaftless screw conveyor 1.

[0065] 2) The tar slag mobile storage hopper 4 is placed on the AGV trolley 5, and the AGV trolley 5 drives to the bottom of the charging sealing device 3, the electric gate valve 441 of the sealing cover 44 of the tar slag mobile storage hopper 4 is opened, and the first hydraulic cylinder 34 of the charging sealing device pushes the horizontal annular knife beam to move downward and insert it into the water seal groove 442 to achieve sealing;

[0066] 3) The tar slag in the temporary slag storage tank 2 is pumped into the metal hose 32 of the charging sealing device 3 through the plunger pump system 9 outlet main pipeline, and then injected into the tar slag mobile storage hopper 4 through the metal hose 32; the amount of tar slag in the tar slag mobile storage hopper is measured by a level meter, and when the amount reaches the set value, the electric ball valve 101 on the main pipeline is closed to stop injecting tar slag into the tar slag mobile storage hopper;

[0067] 4) The electric gate valve 441 of the sealing cover 44 is closed, and the first hydraulic cylinder 34 of the charging sealing device drives the horizontal annular knife beam to move upward and leave the water seal groove 442;

[0068] 5) If the water accumulation in the temporary slag storage tank exceeds the set value, close the electric ball valve 101 of the main pipeline outlet of the plunger pump system 9, open the electric ball valve 101 of the branch pipeline, and the accumulated water is pumped into the tar ammonia clarification mechanical scraper tank 9 through the plunger pump system 9;

[0069] 6) The AGV trolley 5 carries the tar slag mobile storage hopper 4 to the receiving hopper 7, inserts the insertion strips 63 of the unloading device 6 into the slots 45 on both sides of the tar slag mobile storage hopper 4, and the second hydraulic cylinder 62 of the unloading device drives the tar slag mobile storage hopper 4 to flip, and the sealing cover 44 of the storage hopper is driven to open by the counterweight lever 43, and the tar slag in the tar slag mobile storage hopper 4 is poured into the receiving hopper 7, so as to facilitate the further utilization of the tar slag.

[0070] The present invention realizes the full sealing and harmlessness of the tar slag gathering, loading, transportation and unloading processes, and realizes the mechanization and automation of the tar slag gathering, loading, transportation and unloading processes.

[0071] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tar residue collection, loading, transportation and unloading system, characterized in that: It includes a screw conveyor, a temporary slag storage tank, a plunger pump system, a charging sealing device, a tar slag mobile storage hopper, an AGV trolley, a discharging device and a receiving hopper; one or more feeding ports of a screw conveyor are connected to the slag discharge ports of one or more scraper troughs through pipeline sealing, and one or more discharging ports of screw conveyors are connected to the pipeline sealing of the temporary slag storage tank; the temporary slag storage tank is connected to the plunger pump system, and the main outlet pipeline of the plunger pump system is connected to the tar slag mobile storage hopper through the charging sealing device; the tar slag mobile storage hopper is placed on the AGV trolley and transported to the receiving hopper by the AGV trolley; the discharging device turns over the tar slag mobile storage hopper and pours the tar slag into the receiving hopper; The tar slag mobile storage hopper comprises a frame, a hopper body, a counterweight lever and a sealing cover; the hopper body is fixed in the frame, and the side of the hopper body is semi-spiral; the counterweight lever and the sealing cover are mounted on the rotating shaft, and the rotating shaft is mounted on the frame; there is a slot on each side of the frame, and a column foot is provided at the bottom; an electric gate valve and a material level meter are installed on the sealing cover, a water seal groove is provided above the electric gate valve, and a sealing ring is provided around the bottom of the sealing cover; The charging sealing device comprises a sealing cover, a metal hose, an exhaust pipe and a first hydraulic cylinder; the sealing cover is fixedly connected to the push rod of the first hydraulic cylinder, the top of the sealing cover is provided with an inverted funnel-shaped closing, the bottom is provided with a horizontal annular knife beam, one end of the metal hose is connected to the main outlet pipeline of the plunger pump system, and the other end extends into the sealing cover from the closing of the sealing cover; one end of the exhaust pipe is connected to the closing, and the other end is connected to the negative pressure exhaust pipe; The unloading device includes a flip body, a rack and a second hydraulic cylinder; one end of the flip body is provided with an insertion strip, and the other end is provided with a semicircular gear, the flip body is hinged on the receiving hopper, the semicircular gear is meshed with the rack, the rack is fixedly connected to the second hydraulic cylinder push rod, and the second hydraulic cylinder base is fixedly connected to the receiving hopper.

2. A tar residue collection, loading, transportation and unloading system according to claim 1, characterized in that: The top of the temporary slag storage tank is sealed and connected to the discharge port of the screw conveyor through a pipeline, and a hot water pipe is spirally distributed outside the temporary slag storage tank. The discharge port at the bottom of the slag storage tank is connected to a gate valve, and an expansion joint is connected below the gate valve, and the expansion joint is connected to the plunger pump system.

3. The tar residue collection, loading, transportation and unloading system according to claim 1 is characterized in that: The main outlet pipeline of the plunger pump system is provided with a valve, and a branch pipeline is provided to be connected with the scraping trough, and the branch pipeline is provided with a valve.

4. The tar residue collection, loading, transportation and unloading system according to claim 1 is characterized in that: A flat bumper is arranged in the front of the AGV trolley, and a square cone groove is arranged on the top surface.

5. A process based on the tar residue collection, loading, transportation and unloading system according to any one of claims 1 to 4, characterized in that: The specific steps include: 1) The tar slag is discharged through the slag discharge port of the tar ammonia clarification machine scraper trough, enters the screw conveyor from the inlet of the screw conveyor, is transported and collected by the screw conveyor, and is discharged into the temporary slag storage tank from the discharge port of the screw conveyor; 2) The tar slag mobile storage hopper is placed on the AGV trolley. The AGV trolley drives to the bottom of the charging sealing device. The electric gate valve of the sealing cover of the tar slag mobile storage hopper is opened. The hydraulic cylinder of the charging sealing device pushes the horizontal annular knife beam downward and inserts it into the water seal groove to achieve sealing. 3) The tar slag in the temporary slag storage tank is pumped into the metal hose of the charging sealing device through the plunger pump system through the main outlet pipeline of the plunger pump system, and then injected into the tar slag mobile storage hopper through the metal hose; the amount of tar slag in the tar slag mobile storage hopper is measured by the level meter, and when the amount reaches the set value, the valve on the main pipeline is closed to stop injecting tar slag into the tar slag mobile storage hopper; 4) The electric gate valve of the sealing cover is closed, and the first hydraulic cylinder of the loading sealing device drives the horizontal annular knife beam to move upward and leave the water seal groove; 5) If the water accumulation in the temporary slag storage tank exceeds the set value, close the main pipeline valve at the outlet of the plunger pump system, open the branch pipeline valve, and pump the accumulated water into the scraper tank of the tar ammonia clarification machine through the plunger pump system; 6) The AGV trolley carries the tar slag mobile storage hopper to the receiving hopper, inserts the unloading device inserts into the slots on both sides of the tar slag mobile storage hopper, and the second hydraulic cylinder of the unloading device drives the tar slag mobile storage hopper to flip, and the sealing cover of the storage hopper is opened by the counterweight lever, and the tar slag in the storage hopper is poured into the receiving hopper.

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