A feedback-regulated coal tar purification detection device

Abstract

The technical field of coal tar purification detection is specifically a feedback-regulated coal tar purification detection device, including experimental equipment for coal tar detection, the experimental equipment including a bottom plate, a mixing tank fixedly mounted on the upper surface of the bottom plate, and a circulating pump; the mixing tank is provided with a detection device, the detection device including a stirring rod, a pump body, a driving structure, an adjustment structure, and a material receiving structure; the pump body includes a pump casing, a piston rod slidingly reciprocatingly arranged on the pump casing, a check valve fixedly connected to the opposite side of the pump casing, an abutment structure arranged on the outer wall of the pump casing and respectively connected to the piston rod and the driving structure, the abutment structure including an abutment roller, a receiving plate fixedly mounted on the lower surface of the abutment roller and connected to the top of the piston rod. The present invention has high flexibility and can be adjusted as needed to adapt to sampling or suction requirements at different depths and positions, and can ensure uniform mixing of materials, accurate sampling, and efficient detection.

Description

Technical Field

[0001] The invention relates to a feedback-regulated coal tar purification detection device, in particular to a feedback-regulated coal tar purification detection device, and belongs to the technical field of coal tar purification detection. Background Art

[0002] Fixed bed hydrogenation technology is one of the most effective means of processing coal tar into light oil products and chemicals. Coal tar is an inferior heavy raw material with high impurity content such as moisture, metals, active oxygen-containing compounds and solid particles. These impurities will have a serious impact on the stable operation of the hydrogenation unit, catalyst activity and product quality. In order to improve the purification permeability of coal tar, the existing technology is to pre-treat coal tar with 10g / L demetallization agent, and the permeability is more ideal.

[0003] However, when purifying coal tar + 10g / L demetallizing agent, the coal tar and demetallizing agent are usually poured into a mixing tank and mixed by a stirring device, and the mixed coal tar needs to be purified for testing. The existing testing method usually installs a short tube or a long conduit on the outer wall of the mixing tank, and valves are installed on the short tube and the long conduit. By opening the valve, the material in the mixing tank can be discharged for testing.

[0004] However, both methods have certain defects, such as: when installing a short pipe, the worker needs to be close to the mixing tank, the operation is more dangerous, and there is a detection blind area; when installing a long conduit, it takes up a large space and there is also a detection blind area. Therefore, both discharge methods have limitations;

[0005] In view of this, there is an urgent need to improve the purification detection device to solve the above-mentioned problems. Summary of the invention

[0006] The purpose of the present invention is to provide a feedback-regulated coal tar purification detection device, which has high flexibility and can be adjusted as needed to adapt to sampling or suction requirements at different depths and positions, thereby ensuring uniform mixing of materials, accurate sampling and efficient detection.

[0007] In order to achieve the above-mentioned purpose, the main technical scheme adopted by the present invention includes: a feedback-regulated coal tar purification detection device, including an experimental device for coal tar detection, the experimental device including a bottom plate, a mixing tank fixedly mounted on the upper surface of the bottom plate, and a circulation pump;

[0008] The mixing tank is provided with a detection device, which includes a stirring rod, a pump body, a driving structure, an adjustment structure and a material receiving structure;

[0009] The pump body comprises a pump housing, a piston rod slidably reciprocatingly arranged on the pump housing, a check valve fixedly connected to the opposite side of the pump housing, an abutment structure arranged on the outer wall of the pump housing and respectively connected to the piston rod and the driving structure, and a suction pipe extending to the interior of the mixing tank;

[0010] The abutment structure includes an articulated seat, a receiving plate fixedly mounted on one side of the articulated seat and connected to the end of the piston rod, and a first return spring fixedly mounted between the pump housing and the receiving plate;

[0011] The check valve comprises a valve housing, a valve plate hingedly mounted inside the valve housing, and a second return spring hingedly mounted between the valve plate and the valve housing, and the suction pipe comprises two butt joint pipes distributed up and down and a corrugated hose fixedly connected to opposite ends of the two butt joint pipes;

[0012] The driving structure includes a double-shaft motor and a rack arranged above the mixing tank, a driven gear fixedly mounted on the outer surface of the top end of the stirring rod and meshing with the rack, and a transmission gear fixedly mounted on the output shaft at the bottom of the double-shaft motor and meshing with the rack, and the right end of the rack is fixedly connected to the hinge seat;

[0013] The adjustment structure includes an adjustment member, a slide seat, a first cross bar bolted to one side of the slide seat, a connecting rod detachably mounted on the first cross bar and extending into the mixing tank, and a connecting sleeve fixedly connected to one end of the connecting rod and connected to the bottom butt pipe;

[0014] The adjusting member includes a lead screw, a synchronous wheel fixedly mounted on the top of the lead screw and the top output shaft of the dual-axis motor, and a synchronous belt drivingly connected between the two synchronous wheels;

[0015] The material receiving structure includes a vertical mounting plate and a material receiving box which is bolted to one side of the vertical mounting plate and distributed up and down, a material storage tank is arranged inside the material receiving box, and a second cross bar is detachably mounted between the outer surface of the connecting rod and the vertical mounting plate; an L-shaped mounting frame is fixedly mounted on the outer wall of the mixing tank, the dual-axis motor is fixedly mounted inside the L-shaped mounting frame, the stirring rod bearing is mounted on the mixing tank, the piston rod is composed of a piston block and a vertical rod, the vertical rod is fixedly mounted on one side of the piston block, the piston block is slidably abutted against the chamber inside the pump housing, and the vertical rod extends to the outside of the pump housing;

[0016] There are two check valves, and the two check valves are symmetrically arranged on the outer wall of the pump housing. The two check valves are fixedly connected with connecting pipes at one end away from each other, and one of the connecting pipes is fixedly connected with the top connecting pipe, and the end of the other connecting pipe is fixedly connected with a nozzle.

[0017] Preferably, a guide rod penetrating the interior of the receiving plate is fixedly mounted on the outer wall of the pump housing, and the first return spring surrounds the outer surface of the vertical rod.

[0018] Preferably, the rack is slidably mounted on the upper surface of the mixing tank, and a limiting rod for guiding the rack is fixedly mounted on the lower surface of the L-shaped mounting frame.

[0019] Preferably, the end of the docking tube at the top extends to the top of the mixing tank, a mounting groove is provided on the side of the L-shaped mounting frame close to the mixing tank, the screw bearing is installed in the mounting groove, and the top end of the screw passes through the inside of the L-shaped mounting frame, and the slide seat is slidably connected to the mounting groove.

[0020] Preferably, the storage trough is arranged in an inclined shape, and a notch is provided on the side of the storage trough away from the vertical mounting plate, so as to facilitate the nozzle to guide the coal tar into the storage trough for storage.

[0021] Preferably, the connecting sleeve is sleeved and installed on the outer surface of the bottom butt pipe and fixed by bolts, and the length of the suction pipe is adapted to the height of the mixing tank.

[0022] Preferably, a scraper structure is provided inside the bottom butt joint tube, and the scraper structure includes a scraper ring and a connecting frame. The connecting frame is I-shaped, and the upper, lower, left and right ends of the connecting frame are respectively fixed to the scraper ring and the inner wall of the bottom butt joint tube.

[0023] Preferably, the outer wall of the scraper ring abuts against the inner wall of the top butt tube, the round rod in the middle of the connecting frame penetrates the inside of the corrugated hose, and the upper surface of the scraper ring is provided with an inclined groove for discharging materials.

[0024] The present invention has at least the following beneficial effects:

[0025] 1. The feedback-regulated coal tar purification detection device is highly flexible and can be adjusted as needed to meet the sampling or suction requirements at different depths and positions, ensuring uniform mixing of materials, accurate sampling and efficient detection.

[0026] 2. When the feedback-adjusting coal tar purification detection device is used, it is driven by the top output shaft of the double-axis motor, and the transmission of the synchronous belt and the synchronous wheel drives the lead screw to rotate, and then cooperates with the deformation of the corrugated hose. It can not only perform suction detection on materials of different depths, but also avoid direct contact with the material when not sucking the material, preventing the risk of blockage;

[0027] In addition, by expanding and contracting the corrugated hose, the distance between the bottom butt tube and the top butt tube can be adjusted. At this time, the scraper ring can move up and down to scrape off the material remaining on the inner side of the top butt tube, and then use the chute to better discharge it and reduce material residue.

[0028] 3. When the feedback-regulated coal tar purification detection device is used, the dual-axis motor is started to make the transmission gear rotate forward and reversely to drive the rack to move back and forth. The rack moves back and forth and meshes with the driven gear to drive the stirring rod to rotate, and at the same time drives the piston rod to reciprocate, so that the stirring rod and the pump body operate synchronously. The operation of the stirring rod can continuously stir the material in the mixing tank to make the material more uniform, which helps to eliminate local concentration differences in the material. At the same time, through stirring, the material can be more fully in contact with the suction pipe, thereby improving the extraction efficiency of the pump body, which helps to ensure that the material can be extracted in a timely and efficient manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0030] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0031] Figure 2 It is a cross-sectional view of the overall structure of the first embodiment of the present invention;

[0032] Figure 3 It is a structural schematic diagram of the detection device of the present invention;

[0033] Figure 4 It is a structural schematic diagram of the abutment structure of the present invention;

[0034] Figure 5 It is a structural cross-sectional view of the check valve of the present invention;

[0035] Figure 6 It is a partial structural schematic diagram of the regulating structure of the present invention;

[0036] Figure 7 For the present invention Figure 6 A is a schematic diagram of the enlarged structure shown;

[0037] Figure 8 It is a structural schematic diagram of the material connection structure of the present invention;

[0038] Fig. 9 A bottom view of the structure of the scraper structure of the present invention;

[0039] Fig.10 It is a schematic diagram of the structure of the chute of the present invention;

[0040] Fig.11 It is a schematic diagram of the structure after the scraper structure of the present invention is installed.

[0041] In the figure, 1, experimental equipment; 101, bottom plate; 102, mixing tank; 103, circulation pump; 2, testing equipment; 3, L-shaped mounting frame; 4, stirring rod; 5, pump body; 501, pump housing; 502, piston rod; 503, abutment structure; 5031, hinge seat; 5032, receiving plate; 5033, guide rod; 5034, first return spring; 504, check valve; 5041, valve housing; 5042, valve plate; 5043, second return spring; 5044, connecting pipe; 505, suction pipe; 5051, butt pipe; 505 2. Corrugated hose; 6. Double-axis motor; 7. Transmission gear; 8. Rack; 81. Driven gear; 9. Adjustment structure; 901. Adjustment member; 9011. Lead screw; 9012. Synchronous wheel; 9013. Synchronous belt; 902. Slide; 903. First cross bar; 904. Connecting rod; 905. Connecting sleeve; 906. Second cross bar; 10. Material receiving structure; 1001. Vertical mounting plate; 1002. Material receiving box; 1003. Material storage trough; 11. Scraping structure; 1101. Scraping ring; 1102. Connecting frame; 1103. Inclined trough. DETAILED DESCRIPTION

[0042] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0043] like Figure 1 As shown, the feedback regulation coal tar purification detection device provided in this embodiment includes an experimental device 1 for coal tar detection, and the experimental device 1 includes a bottom plate 101, a mixing tank 102 fixedly mounted on the upper surface of the bottom plate 101, and a circulation pump 103; a communicating pipe is installed between the circulation pump 103 and the mixing tank 102. The upper surface of the mixing tank 102 is fixedly connected with a feed hopper. The mixing tank 102 is mounted on the upper surface of the bottom plate 101 through a support frame.

[0044] Embodiment 1:

[0045] like Figure 2 - Fig.11As shown, a detection device 2 is provided on the mixing tank 102, and the detection device 2 includes a stirring rod 4, a pump body 5, a driving structure, an adjustment structure 9 and a material receiving structure 10; the pump body 5 includes a pump housing 501, a piston rod 502 slidably reciprocatingly arranged on the pump housing 501, a check valve 504 fixedly connected to the opposite side of the pump housing 501, an abutment structure 503 provided on the upper surface of the pump housing 501 and connected to the piston rod 502 and the driving structure respectively, and a suction pipe 505 extending to the inside of the mixing tank 102; the abutment structure 503 includes an articulated seat 5031, a fixedly mounted on the articulated seat 50 31 side and connected to the piston rod 502 end of the receiving plate 5032, a first return spring 5034 fixedly installed between the pump housing 501 and the receiving plate 5032; the check valve 504 includes a valve housing 5041, a valve plate 5042 hingedly installed inside the valve housing 5041, and a second return spring 5043 hingedly installed between the valve plate 5042 and the valve housing 5041; the suction pipe 505 includes two butt-joint pipes 5051 distributed up and down and a corrugated hose 5052 fixedly connected to the opposite ends of the two butt-joint pipes 5051; the driving structure includes ... 2, a driven gear 81 fixedly mounted on the outer surface of the top end of the stirring rod 4 and meshing with the rack 8, a transmission gear 7 fixedly mounted on the output shaft at the bottom of the dual-axis motor 6 and meshing with the rack 8, and the right end of the rack 8 is fixedly connected to the hinge seat 5031; the adjustment structure 9 includes an adjustment member 901, a slide seat 902, a first cross bar 903 bolted to one side of the slide seat 902, a connecting rod 904 detachably mounted on the first cross bar 903 and extending to the inside of the mixing tank 102, and a pipe 505 fixedly connected to one end of the connecting rod 904 and connected to the bottom. 1; the adjusting member 901 includes a lead screw 9011, a synchronous wheel 9012 fixedly mounted on the top of the lead screw 9011 and the top output shaft of the dual-axis motor 6, and a synchronous belt 9013 drivingly connected between the two synchronous wheels 9012; the material receiving structure 10 includes a vertical mounting plate 1001 and a material receiving box 1002 bolted to one side of the vertical mounting plate 1001 and distributed up and down, a material storage trough 1003 is arranged inside the material receiving box 1002, and a second cross bar 906 is detachably mounted between the outer surface of the connecting rod 904 and the vertical mounting plate 1001.

[0046] In this embodiment, if Figure 2 and Figure 3 As shown, an L-shaped mounting frame 3 is fixedly installed on the outer wall of the mixing tank 102, the dual-axis motor 6 is fixedly installed inside the L-shaped mounting frame 3, the stirring rod 4 bearing is installed on the mixing tank 102, and the piston rod 502 is composed of a piston block and a vertical rod, the vertical rod is fixedly installed on one side of the piston block, the piston block is slidably abutted against the chamber inside the pump housing 501, and the vertical rod extends to the outside of the pump housing 501.

[0047] Specifically, Figure 4As shown, a guide rod 5033 penetrating the interior of the receiving plate 5032 is fixedly installed on the outer wall of the pump housing 501, and a first return spring 5034 surrounds the outer surface of the vertical rod. There are two check valves 504, and the two check valves 504 are symmetrically arranged on the outer wall of the pump housing 501. The two check valves 504 are fixedly connected to a connecting pipe 5044 at one end away from each other, and one of the connecting pipes 5044 is fixedly connected to the top butt pipe 5051, and the end of the other connecting pipe 5044 is fixedly connected to a nozzle. During use, the piston rod 502 is reciprocated to perform the suction process: when the piston moves outward, the outlet valve plate 5042 is closed under the action of its own weight and the pressure difference to prevent the liquid in the pump chamber from flowing back. At the same time, the inlet reverse valve plate 5042 is opened under the action of the pressure difference to suck the liquid into the pump chamber. During the discharge process: when the piston rod 502 is squeezed, the pressure in the pump chamber increases, causing the inlet valve plate 5042 to close to prevent the liquid from entering the pump chamber again. At this time, the outlet valve plate 5042 is opened to press the liquid in the pump chamber into the outlet pipeline to complete the liquid delivery.

[0048] In this embodiment, the rack 8 is slidably mounted on the upper surface of the mixing tank 102, and a limit rod guiding the rack 8 is fixedly mounted on the lower surface of the L-shaped mounting frame 3. The bottom output shaft of the dual-axis motor 6 is started to make the transmission gear 7 rotate forward and reverse to drive the rack 8 to move back and forth. The rack 8 moves back and forth and meshes with the driven gear 81 to drive the stirring rod 4 to rotate, and at the same time drives the piston rod 502 to reciprocate, so that the stirring rod 4 and the pump body 5 operate synchronously. The operation of the stirring rod 4 can continuously stir the material in the mixing tank 102 to make the material more uniform, which helps to eliminate the local concentration difference in the material. At the same time, through the stirring work, the material can be more fully in contact with the suction pipe 505, thereby improving the extraction efficiency of the pump body 5, which helps to ensure that the material can be extracted in a timely and efficient manner.

[0049] In this embodiment, the end of the top docking tube 5051 extends to the top of the mixing tank 102, and a mounting groove is opened on the side of the L-shaped mounting frame 3 close to the mixing tank 102. The bearing of the screw 9011 is installed in the mounting groove, and the top end of the screw 9011 passes through the interior of the L-shaped mounting frame 3, and the slide seat 902 is slidably connected to the mounting groove.

[0050] It should be noted that the storage tank 1003 is arranged in an inclined shape, and a notch is arranged on the side of the storage tank 1003 away from the vertical mounting plate 1001, so that the nozzle can be used to introduce coal tar into the storage tank 1003 for storage. The storage tank 1003 can be installed with a mass spectrometer, a viscometer, a densitometer, etc. The connecting sleeve 905 is sleeved and installed on the outer surface of the bottom butt pipe 5051 and fixed by bolts. The length of the suction pipe 505 is adapted to the height of the mixing tank 102. Driven by the adjusting member 901 and in conjunction with the deformation of the corrugated hose 5052, not only can the materials at different depths be sucked and tested, but also direct contact with the materials can be avoided when no materials are sucked to prevent the risk of blockage.

[0051] At the same time, the adjusting member 901 can drive the docking material box 1002 to adjust the position so as to better collect materials at different depths. The design of the corrugated hose 5052 enables the active pump body 5 to suck materials at different positions and depths, improving the flexibility of the equipment. Through the adjustment of the lifting function, it can easily adapt to the mixing tanks 102 of different sizes and shapes, as well as oil at different positions, so that the efficient work of the pump body 5 and the flexible movement of the telescopic corrugated hose 5052 can quickly complete the suction task and improve production efficiency.

[0052] In order to reduce the residual material, in this embodiment, Fig. 9 - Fig.11 As shown, a scraper structure 11 is arranged inside the bottom butt joint tube 5051, and the scraper structure 11 includes a scraper ring 1101 and a connecting frame 1102. The connecting frame 1102 is I-shaped, and the upper, lower, left and right ends of the connecting frame 1102 are respectively fixed to the scraper ring 1101 and the inner wall of the bottom butt joint tube 5051.

[0053] Specifically, the outer wall of the scraper ring 1101 is against the inner wall of the top butt joint pipe 5051, the round rod in the middle of the connecting frame 1102 penetrates the inside of the corrugated hose 5052, and the upper surface of the scraper ring 1101 is provided with a chute 1103 for discharging materials, and the number of chute 1103 is multiple, and multiple chute 1103 are equidistantly arranged on the upper surface of the scraper ring 1101. By driving the adjusting member 901, the spacing between the bottom butt joint pipe 5051 and the top butt joint pipe 5051 is adjusted. At this time, the scraper ring 1101 can move up and down to scrape off the materials remaining on the inner side of the top butt joint pipe 5051, reduce the residual materials, and use the chute 1103 to better discharge. The fixing method of the connecting frame 1102 and the bottom butt joint pipe 5051 can be bolted, and the outer surface of the bolt is coated with anti-corrosion and anti-rust paint.

[0054] It can be understood that there are two butt joint tubes 5051, and the two butt joint tubes 5051 are distributed up and down and fixed to the upper and lower ends of the corrugated hose 5052 at opposite ends, wherein the top butt joint tube 5051 is fixed above the mixing tank 102, the bottom butt joint tube 5051 extends to the interior of the mixing tank 102 and is connected to the adjustment structure 9, and the scraper ring 1101 penetrates the interior of the corrugated hose 5052 and extends to the interior of the top butt joint tube 5051. Therefore, by driving the adjusting member 901, the distance between the bottom butt joint tube 5051 and the top butt joint tube 5051 can be adjusted. At this time, the scraper ring 1101 can move up and down to scrape off the material remaining on the inner side of the top butt joint tube 5051, thereby reducing the residual material.

[0055] like Figure 1 - Fig.11As shown, the principle of the feedback regulation coal tar purification detection device provided in this embodiment is as follows:

[0056] When in use, first use the adjustment member 901 to move the suction tube 505 to the top of the mixing tank 102, start the output shaft at the bottom of the dual-axis motor 6, make the transmission gear 7 rotate forward and reverse to drive the rack 8 to move back and forth, the rack 8 moves back and forth and meshes with the driven gear 81 to drive the stirring rod 4 to rotate, and at the same time drives the piston rod 502 to reciprocate, so that the stirring rod 4 and the pump body 5 operate synchronously, the operation of the stirring rod 4 can continuously stir the material in the mixing tank 102 to make the material more uniform, which helps to eliminate local concentration differences in the material, and at the same time, through the stirring work, the material can be more fully in contact with the suction tube 505, thereby improving the extraction efficiency of the pump body 5, which helps to ensure that the material can It is extracted timely and efficiently. When the stirring reaches the specified time and purification detection is required, the top output shaft of the dual-axis motor 6 is started to drive the adjusting member 901, so that the corrugated hose 5052 is deformed and extended. At this time, the connecting pipe 5051 moves down to contact the material, and the material is extracted through the pump body 5 and discharged into the lower receiving box 1002. When it is necessary to detect different positions, the adjusting member 901 is started again to move the connecting pipe 5051 downward again. At this time, the lower receiving box 1002 moves downward, and the middle receiving box 1002 takes over the position of the lower receiving box 1002. At this time, the nozzle faces another receiving box 1002, and so on, so as to detect materials at different depths in the mixing tank 102.

[0057] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0058] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0059] The above description shows and describes several preferred embodiments of the present invention, but as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. Changes and variations made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A feedback-regulated coal tar purification detection device, comprising an experimental device (1) for coal tar detection, characterized in that: The experimental equipment (1) comprises a base plate (101), a mixing tank (102) fixedly mounted on the upper surface of the base plate (101), and a circulation pump (103); The mixing tank (102) is provided with a detection device (2), the detection device (2) comprising a stirring rod (4), a pump body (5), a driving structure, an adjustment structure (9) and a material receiving structure (10); The pump body (5) comprises a pump housing (501), a piston rod (502) slidably reciprocatingly arranged on the pump housing (501), a check valve (504) fixedly connected to an opposite side of the pump housing (501), an abutment structure (503) arranged on the outer wall of the pump housing (501) and connected to the piston rod (502) and the driving structure respectively, and a suction pipe (505) extending to the interior of the mixing tank (102); The abutment structure (503) comprises an articulated seat (5031), a receiving plate (5032) fixedly mounted on one side of the articulated seat (5031) and connected to the end of the piston rod (502), and a first return spring (5034) fixedly mounted between the pump housing (501) and the receiving plate (5032); The check valve (504) comprises a valve housing (5041), a valve plate (5042) hingedly mounted inside the valve housing (5041), and a second return spring (5043) hingedly mounted between the valve plate (5042) and the valve housing (5041); the suction pipe (505) comprises two butt joint pipes (5051) distributed up and down, and a corrugated hose (5052) fixedly connected to opposite ends of the two butt joint pipes (5051); The driving structure comprises a double-shaft motor (6) and a rack (8) arranged above the mixing tank (102), a driven gear (81) fixedly mounted on the outer surface of the top end of the stirring rod (4) and meshing with the rack (8), and a transmission gear (7) fixedly mounted on the output shaft at the bottom of the double-shaft motor (6) and meshing with the rack (8), wherein the right end of the rack (8) is fixedly connected to the hinge seat (5031); The adjustment structure (9) comprises an adjustment member (901), a slide seat (902), a first cross bar (903) bolted to one side of the slide seat (902), a connecting rod (904) detachably mounted on the first cross bar (903) and extending into the interior of the mixing tank (102), and a connecting sleeve (905) fixedly connected to one end of the connecting rod (904) and connected to the bottom butt pipe (5051); The adjusting member (901) comprises a lead screw (9011), a synchronous wheel (9012) fixedly mounted on the top of the lead screw (9011) and on the top output shaft of the dual-axis motor (6), and a synchronous belt (9013) drivingly connected between the two synchronous wheels (9012); The material receiving structure (10) comprises a vertical mounting plate (1001) and a material receiving box (1002) bolted to one side of the vertical mounting plate (1001) and arranged vertically; a material storage trough (1003) is provided inside the material receiving box (1002); a second cross bar (906) is detachably mounted between the outer surface of the connecting rod (904) and the vertical mounting plate (1001); An L-shaped mounting frame (3) is fixedly mounted on the outer wall of the mixing tank (102), the dual-axis motor (6) is fixedly mounted inside the L-shaped mounting frame (3), the bearing of the stirring rod (4) is mounted on the mixing tank (102), the piston rod (502) is composed of a piston block and a vertical rod, the vertical rod is fixedly mounted on one side of the piston block, the piston block is in sliding contact with the chamber inside the pump housing (501), and the vertical rod extends to the outside of the pump housing (501); There are two check valves (504), and the two check valves (504) are symmetrically arranged on the outer wall of the pump housing (501); the two check valves (504) are fixedly connected to a connecting pipe (5044) at one end away from each other, and one of the connecting pipes (5044) is fixedly connected to a top butt joint pipe (5051), and the end of the other connecting pipe (5044) is fixedly connected to a nozzle.

2. A feedback-regulated coal tar purification detection device according to claim 1, characterized in that: A guide rod (5033) penetrating the interior of the receiving plate (5032) is fixedly mounted on the outer wall of the pump housing (501), and the first return spring (5034) surrounds the outer surface of the vertical rod.

3. The feedback-regulated coal tar purification detection device according to claim 1, characterized in that: The rack (8) is slidably mounted on the upper surface of the mixing tank (102), and a limiting rod for guiding the rack (8) is fixedly mounted on the lower surface of the L-shaped mounting frame (3).

4. A feedback-regulated coal tar purification detection device according to claim 3, characterized in that: The end of the butt joint pipe (5051) at the top extends to the top of the mixing tank (102); a mounting groove is provided on a side of the L-shaped mounting frame (3) close to the mixing tank (102); a bearing of the lead screw (9011) is mounted in the mounting groove, and a top end of the lead screw (9011) passes through the interior of the L-shaped mounting frame (3); and the slide seat (902) is slidably connected to the mounting groove.

5. The feedback-regulated coal tar purification detection device according to claim 1, characterized in that: The storage tank (1003) is arranged in an inclined shape, and a notch is arranged on a side of the storage tank (1003) away from the vertical mounting plate (1001), so as to facilitate the nozzle to guide the coal tar into the storage tank (1003) for storage.

6. The feedback-regulated coal tar purification detection device according to claim 1, characterized in that: The connecting sleeve (905) is sleeved and installed on the outer surface of the bottom butt pipe (5051) and fixed by bolts. The length of the suction pipe (505) is adapted to the height of the mixing tank (102).

7. The feedback-regulated coal tar purification detection device according to claim 1, characterized in that: A scraper structure (11) is arranged inside the butt joint pipe (5051) at the bottom. The scraper structure (111) comprises a scraper ring (1101) and a connecting frame (1102). The connecting frame (1102) has an I-shaped appearance, and the upper, lower, left and right ends of the connecting frame (1102) are respectively fixed to the scraper ring (1101) and the inner wall of the butt joint pipe (5051) at the bottom.

8. The feedback-regulated coal tar purification detection device according to claim 7, characterized in that: The outer wall of the scraper ring (1101) abuts against the inner wall of the top butt tube (5051), the round rod in the middle of the connecting frame (1102) penetrates the inside of the corrugated hose (5052), and the upper surface of the scraper ring (1101) is provided with an inclined groove (1103) for discharging materials.

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