Underground coal gasification gas water dephenolization device

Abstract

The utility model relates to the technical field of coal underground gasification, and discloses a coal underground gasification gas water dephenolization device which comprises an adsorption box, a filter box and a filter screen, a stirring mechanism is arranged in the adsorption box and used for stirring activated carbon and gas water, the filter box is arranged on one side of the adsorption box, and the filter screen is arranged on the other side of the adsorption box. A conveying pipeline is fixedly connected to the position, close to the bottom end, of the side face of the adsorption box and used for conveying gas water added with activated carbon; through a three-dimensional differential stirring system formed by the transverse bevel gear and the vertical bevel gear, the short rod and the long rod rotate in opposite directions, high-strength shear flow and macroscopic convection are formed in the settling barrel, and compared with traditional one-way stirring, the contact area of activated carbon and gas water is increased, the adsorption dynamic rate constant is increased, and the adsorption efficiency is improved. The adsorption equilibrium time of phenolic substances is shortened, the centrifugal force generated by stirring forces active carbon particles to collide with one another, colloidal impurities adsorbed on the surfaces of the active carbon particles are effectively removed, the accessibility of inner micropores is recovered, and the utilization rate of the active carbon is increased.

Description

TECHNICAL FIELD

[0001] The utility model belongs to coal underground gasification technical field, concretely relates to a coal underground gasification coal gas water phenol removal device. BACKGROUND

[0002] The coal underground gasification coal gas water phenol removal device is a special device for resource treatment of phenol-containing wastewater generated in the coal underground gasification (UCG) process. The device realizes recycling of phenol, methyl phenol and other harmful substances in the coal gas water through a multi-stage separation and purification process, and ensures that the wastewater meets the discharge standard.

[0003] The total phenol content in the wastewater generated by the coal underground gasification varies greatly due to different coal types. When the total phenol content in the coal gas water is greater than 2000 mg / L, the solvent extraction method is used to recover the phenol, which has certain economic efficiency. When the total phenol content in the coal gas water is less than 2000 mg / L, the solvent extraction method for phenol removal is very uneconomical, and the value of recovered phenol is not great. Generally, activated carbon adsorption is used for phenol removal to make the phenol content in the coal gas water meet the requirements of the biochemical treatment device.

[0004] As a clean energy conversion technology, the coal underground gasification (UCG) faces the problem of efficient recovery of phenolic pollutants in the coal gas water treatment process. The traditional phenol recovery device generally uses activated carbon adsorption process, but there are significant technical bottlenecks in actual engineering application. Firstly, the fixed bed or flow bed adsorption system generally lacks a dynamic mixing mechanism. The activated carbon and high-viscosity phenol-containing wastewater only rely on natural diffusion contact, which leads to low mass transfer efficiency. In the typical working condition of 800-1200 mg / L of phenol concentration, static adsorption needs to take 4-6 hours to reach equilibrium state, and the utilization rate of the inner micropore of activated carbon is insufficient, which seriously restricts the treatment efficiency and economy. Secondly, the existing filtration system generally uses 200-400 mesh flat filter screen for solid-liquid separation, but the carbon-phenol complex formed after adsorption is easy to form a gel-like accumulation layer on the surface of the filter screen. Engineering cases show that the filter screen pressure difference increases after continuous operation, which causes frequent shutdown and flushing, resulting in a decrease in the effective operation rate of the device. More seriously, the micron-level carbon powder can be embedded in the filter screen pores to cause permanent blockage, which shortens the filter screen replacement cycle to 1 / 3 of the original design value, significantly increasing the maintenance cost. SUMMARY

[0005] The utility model discloses a buffer support structure that is simple in structure and reasonable in design.

[0006] The utility model discloses a buffer support structure that is simple in structure and reasonable in design.

[0007] The utility model provides a coal underground gasification coal gas water phenol removal device, including adsorption box, filter box and filter screen, be equipped with stirring mechanism in adsorption box for stirring activated carbon and coal gas water, the filter box establishes in adsorption box one side, the side surface of adsorption box is fixedly connected with the conveying pipeline in the position close to the bottom end, is used for conveying the coal gas water of adding activated carbon, the filter screen is installed on the filter box, the water outlet of conveying pipeline is located the top of filter screen, be equipped with filter mechanism on the filter screen, is used for scraping the activated carbon and impurity on the filter screen surface,

[0008] The stirring mechanism comprises a forward stirring assembly, a reverse stirring assembly and a driving assembly, the driving assembly comprises a forward driving assembly and a reverse driving assembly, the forward driving assembly drives the forward stirring assembly to stir the activated carbon and the coal gas water clockwise, and meanwhile the reverse driving assembly drives the reverse stirring assembly to stir the activated carbon and the coal gas water counterclockwise.

[0009] As a further optimization scheme of the utility model, the adsorption box is fixedly connected with a fixed plate, and the stirring mechanism is connected to the fixed plate.

[0010] As a further optimization scheme of the utility model, the forward stirring assembly comprises a round rod, a first round plate, a plurality of long plates and long rods corresponding to the long plates, the first round plate is fixedly sleeved on the surface of the round rod close to the upper end, the plurality of long plates are circumferentially connected to the surface of the first round plate, the long rods are fixedly connected to the lower surfaces of the long plates, and the forward driving assembly drives the round rod to rotate clockwise.

[0011] The reverse stirring assembly comprises a sleeve, a second round plate, a plurality of short plates and short rods corresponding to the short plates, the sleeve is sleeved on the surface of the round rod, the second round plate is sleeved on the surface of the sleeve close to the lower end, the plurality of short plates are circumferentially connected to the surface of the second round plate, the short rods are fixedly connected to the upper surfaces of the short plates, the reverse driving assembly drives the sleeve to rotate counterclockwise, and the long rods and the short rods are both arranged obliquely.

[0012] As a further optimization scheme of the utility model, the forward driving assembly is a rotating motor, the rotating motor is connected to the fixed plate, the upper end of the round rod is fixedly connected to the driving end of the rotating motor, and the other end is rotatably connected to the inner bottom of the adsorption box.

[0013] The reverse driving assembly comprises a vertical bevel gear, two groups of horizontal bevel gears, one group of the horizontal bevel gears is fixedly sleeved on the surface of the round rod, the other group of the horizontal bevel gears is fixedly sleeved on the surface of the sleeve, the vertical bevel gear is engaged with the two groups of horizontal bevel gears and is rotatably connected to the surface of the round rod through a rotating shaft.

[0014] As a further optimization scheme of the utility model, the filter screen is arranged obliquely.

[0015] As a further optimization scheme of the utility model, the filter mechanism includes disc one, elastic piece, scraper one, connecting column, push block and two groups of connecting pieces, the scraper one is connected on the filter box, the lower surface of disc one is connected with connecting rod, two groups of connecting pieces are connected with both ends of elastic piece respectively, one end of two groups of connecting pieces away from elastic piece is equipped with ring, one group of ring is rotatably connected with connecting rod and fixedly connected with connecting piece close to connecting rod, another group of ring is fixedly connected with connecting column and rotatably connected with connecting piece close to push block, the connecting column is fixedly connected on push block, the scraper one is fixedly connected with push block, the adsorption box is equipped with transmission assembly, the transmission assembly drives disc one to rotate.

[0016] As a further optimization scheme of the utility model, the filter mechanism includes disc one, elastic piece, scraper one, connecting column, push block and two groups of connecting pieces, the scraper one is connected on the filter box, the lower surface of disc one is connected with connecting rod, two groups of connecting pieces are connected with both ends of elastic piece respectively, one end of two groups of connecting pieces away from elastic piece is equipped with ring, one group of ring is rotatably connected with connecting rod and fixedly connected with connecting piece close to connecting rod, another group of ring is fixedly connected with connecting column and rotatably connected with connecting piece close to push block, the connecting column is fixedly connected on push block, the scraper one is fixedly connected with push block, the adsorption box is equipped with transmission assembly, the transmission assembly drives disc one to rotate.

[0017] The adsorption box is equipped with transmission assembly, and the transmission assembly drives disc two to rotate.

[0018] As a further optimization scheme of the utility model, the sliding groove includes uplink section, downlink section and two groups of straight sections, two groups of straight sections are arranged in parallel, the uplink section and the downlink section are connected at two ends of the two groups of straight sections, and the uplink section, the downlink section and the two groups of straight sections form a ring-shaped sliding groove.

[0019] As a further optimization scheme of the utility model, the inner wall of the sliding groove is provided with sliding grooves at the positions of the uplink section and the downlink section, two groups of the sliding grooves are slidably connected with the stop blocks, one side surface of the two groups of the stop blocks in the sliding grooves is fixedly connected with compression springs, one end of the compression springs away from the stop blocks is fixedly connected with the inner wall of the sliding groove, and the surface of the stop block outside the sliding groove and in contact with the limiting block is arranged in an inclined manner.

[0020] As a further optimization scheme of the utility model, the transmission assembly includes annular rack and two groups of linkage gear, the annular rack is sleeved on the surface of two groups of linkage gear, one group of linkage gear is fixedly connected at the driving end of the rotating motor, the other group of linkage gear is coaxially connected with the disc.

[0021] The utility model discloses the beneficial effect lies in:

[0022] 1) the utility model discloses three -dimensional differential stirring system that transverse bevel gear and vertical bevel gear constitute, and the short pole and long pole reverse rotation form high -intensity shear flow and macroscopic convection in the settling barrel, compared with the traditional one -way stirring, make the contact area of activated carbon and coal gas water promote, adsorption kinetics rate constant improves, and the adsorption equilibrium time of phenolic substance is shortened, and the centrifugal force that stirring produces forces activated carbon particles to collide with each other, effectively removes the colloidal impurity adsorbed on its surface, restores the accessibility of the inner micropore, and makes the utilization rate of activated carbon improve.

[0023] 2) the utility model discloses the planetary transmission system that linkage gear and annular rack constitute, and the reciprocating motion of scraper one is made on the surface of filter screen through the driving of push block, combines the flexible pressure of elastic member, realizes the instant peeling of activated carbon after filtration, makes the filter screen blockage period extension, and the cleaning frequency reduces, and the backwashing water consumption reduces, and scraper one removes activated carbon particles, and the activated carbon is transported into activated carbon regenerator and regenerates through the conveyer belt. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the whole structure schematic diagram of the utility model embodiment one;

[0025] Figure 2 It is the stirring mechanism structure schematic diagram of the utility model embodiment one;

[0026] Figure 3 It is the filter mechanism structure schematic diagram of the utility model embodiment one;

[0027] Figure 4 It is the transmission assembly structure schematic diagram of the utility model embodiment one;

[0028] Figure 5 It is the filter mechanism structure schematic diagram of the utility model embodiment two;

[0029] Figure 6 It is the slider structure schematic diagram of the utility model embodiment two;

[0030] Figure 7 It is the shell structure schematic diagram of the utility model embodiment two;

[0031] Figure 8 It is the limiting block structure schematic diagram of the utility model embodiment two;

[0032] Figure 9 is the sliding groove structure schematic diagram of the embodiment two of the utility model;

[0033] Figure 10 is the sliding groove internal structure schematic diagram of the embodiment two of the utility model.

[0034] In the drawing: 1, adsorption box;2, filter box;3, filter screen;4, filter mechanism;41, disc one;42, elastic piece;43, scraper one;44, connecting column;45, push block;46, connecting piece;47, connecting rod;48, circular ring;401, disc two;402, sliding block;403, limiting plate;404, limiting frame;405, cylindrical block;406, shell;407, scraper two;408, limiting block;409, tension spring;5, conveying pipeline;6, forward stirring assembly;61, round rod;62, round plate one;63, long plate;64, long rod;7, reverse stirring assembly;71, sleeve;72, round plate two;73, short plate;74, short rod;8, forward driving assembly;81, rotating motor;9, reverse driving assembly;91, vertical bevel gear;92, horizontal bevel gear;10, fixed plate;11, transmission assembly;111, annular rack;112, linkage gear;12, mounting plate;13, sliding groove;131, upward section;132, downward section;133, straight section;14, sliding groove;15, stop block;16, compression spring. DETAILED DESCRIPTION

[0035] The following further describes the present application in conjunction with the drawings, and it is necessary to point out here that the following detailed description is only used to further illustrate the present application, and cannot be understood as limiting the scope of protection of the present application, and the skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0036] Embodiment one

[0037] Reference Figures 1 to 3 As shown in part structure, a coal underground gasification coal gas water phenol removal device, including adsorption box 1, filter box 2 and filter screen 3, the adsorption box 1 is equipped with stirring mechanism, for stirring activated carbon and coal gas water, the filter box 2 is located at one side of the adsorption box 1, the side of the adsorption box 1 is fixedly connected with the conveying pipeline 5 near the bottom end position, for conveying the coal gas water with activated carbon, the filter screen 3 is installed on the filter box 2, the water outlet of the conveying pipeline 5 is located above the filter screen 3, the filter screen 3 is equipped with filter mechanism 4, for scraping the activated carbon and impurities on the surface of the filter screen 3;

[0038] The stirring mechanism includes a forward stirring component 6, a reverse stirring component 7, and a driving component. The driving component includes a forward driving component 8 and a reverse driving component 9. The forward driving component 8 drives the forward stirring component 6 to stir the activated carbon and coal gas and water clockwise, while the reverse driving component 9 drives the reverse stirring component 7 to stir the activated carbon and coal gas and water counterclockwise.

[0039] In practical use, phenol-containing coal gas water is first transported into adsorption box 1 through a pipeline, and then activated carbon is added into the adsorption box 1 for filtration and recovery. The stirring mechanism is set inside the adsorption box 1, and the coal gas water and activated carbon are stirred clockwise and counterclockwise at the same time by the stirring mechanism.

[0040] Furthermore, a fixed plate 10 is fixedly connected to the adsorption box 1, and the stirring mechanism is connected to the fixed plate 10.

[0041] refer to Figure 1 and Figure 2 The structure shown includes a forward stirring assembly 6 comprising a round rod 61, a round plate 62, multiple sets of long plates 63, and a long rod 64 corresponding to the long plates 63. The round plate 62 is fixedly sleeved on the surface of the round rod 61 near the upper end. The multiple sets of long plates 63 are circumferentially connected to the surface of the round plate 62. The long rod 64 is fixedly connected to the lower surface of the long plates 63. The forward driving assembly 8 drives the round rod 61 to rotate clockwise.

[0042] The reverse stirring assembly 7 includes a sleeve 71, a second circular plate 72, multiple sets of short plates 73, and short rods 74 corresponding to the short plates 73. The sleeve 71 is fitted onto the surface of the circular rod 61, the second circular plate 72 is fitted onto the surface of the sleeve 71 near the lower end, the multiple sets of short plates 73 are circumferentially connected to the surface of the second circular plate 72, and the short rods 74 are fixedly connected to the upper surface of the short plates 73. The reverse driving assembly 9 drives the sleeve 71 to rotate counterclockwise. Both the long rod 64 and the short rods 74 are inclined.

[0043] Furthermore, the forward drive assembly 8 is a rotary motor 81, which is connected to the fixed plate 10. The upper end of the round rod 61 is fixedly connected to the drive end of the rotary motor 81, and the other end is rotatably connected to the inner bottom of the adsorption box 1.

[0044] The reverse drive assembly 9 includes a vertical bevel gear 91 and two sets of horizontal bevel gears 92. One set of horizontal bevel gears 92 is fixedly sleeved on the surface of the round rod 61, and the other set of horizontal bevel gears 92 is fixedly sleeved on the surface of the sleeve 71. The vertical bevel gear 91 meshes with the two sets of horizontal bevel gears 92 and is rotatably connected to the surface of the round rod 61 through a rotating shaft.

[0045] In actual use, the rotating motor 81 can drive the circular rod 61 to rotate clockwise, and the circular rod 61 drives the plurality of long rods 64 to rotate clockwise through the circular plate one 62 and the long plate 63. Meanwhile, the rotation of the circular rod 61 also drives the horizontal bevel gear 92 connected to the surface of the circular rod 61 to rotate, and the vertical bevel gear 91 and the horizontal bevel gear 92 cooperate to drive the sleeve 71, the circular plate two 72 and the short plate 73 connected to the sleeve 71 to rotate counterclockwise, thereby driving the plurality of short rods 74 to rotate counterclockwise.

[0046] It should be noted that the forward stirring assembly 6 and the reverse stirring assembly 7 simultaneously stir the activated carbon put into the adsorption box 1, so that the activated carbon is fully mixed with the liquid (coal gas water), and the speed of precipitation can be increased.

[0047] It should be further noted that the structures in the forward stirring assembly 6, the reverse stirring assembly 7 and the reverse driving assembly 9 are made of waterproof, corrosion-resistant and high-temperature-resistant materials, and a box (i.e. a gear box) needs to be provided outside the horizontal bevel gear 92 and the vertical bevel gear 91 to prevent direct contact between the horizontal bevel gear 92 and the vertical bevel gear 91 and the coal gas water.

[0048] In addition, the horizontal bevel gear 92 and the vertical bevel gear 91 adopt helical bevel gears (module m = 3, gear ratio 1:1, pressure angle 20°), and fluororubber O-rings (temperature resistance -40℃~200℃) are used for sealing the gear box, so as to ensure the long-term transmission stability under acidic medium.

[0049] In other embodiments, the short rods 74 and the long rods 64 can be welded to the short plate 73 and the long plate 63 at different inclination angles (specifically 20°, 25°, 30°, etc., and preferably 30°), forming an asymmetric paddle structure.

[0050] It should be noted that the rotating motor 81 drives the circular rod 61 to rotate, and the output rotation speed is adjustable at 80-120 rpm to match different phenol concentration conditions. The stirring shafts (the circular rod 61, the long rod 64, the long plate 63, the sleeve 71, the short plate 73, and the short rod 74) are made of 316L stainless steel plated with titanium, and the surface roughness Ra≤0.8μm, which reduces the adhesion of carbon powder. The gear box is filled with food-grade lubricating grease (NLGI2#), and the outside is sprayed with a PTFE coating to achieve an IP68 protection level. The inner wall of the adsorption box 1 is provided with a baffle (the height is 1 / 5 of the barrel diameter) for strengthening the vortex mixing effect.

[0051] Further, the filter screen 3 is arranged obliquely.

[0052] Reference Figure 1 and Figure 3The filter mechanism 4 includes a disc 41, an elastic member 42, a scraper 43, a connecting column 44, a push block 45, and two groups of connecting members 46. The scraper 43 is slidingly connected to the filter box 2. The disc 41 is connected with a connecting rod 47 at its lower surface. The two groups of connecting members 46 are connected with the two ends of the elastic member 42 respectively. The two groups of connecting members 46 are each provided with a circular ring 48. One of the two groups of circular rings 48 is rotatably connected with the connecting rod 47 and fixedly connected with the connecting member 46 close to the connecting rod 47. The other group of circular rings 48 is fixedly connected with the connecting column 44 and rotatably connected with the connecting member 46 close to the push block 45. The connecting column 44 is fixedly connected with the push block 45. The scraper 43 is fixedly connected with the push block 45. The adsorption box 1 is provided with a transmission assembly 11. The transmission assembly 11 drives the disc 41 to rotate.

[0053] It should be noted that the conveying pipeline 5 is arranged away from the disc 41. In actual use, the rotation of the disc 41 can make the scraper 43 reciprocate along the upper surface of the filter screen 3.

[0054] Reference Figure 1 and Figure 4 The transmission assembly 11 includes an annular rack 111 and two groups of linkage gears 112. The annular rack 111 is sleeved on the surfaces of the two groups of linkage gears 112. One group of linkage gears 112 is fixedly connected with the driving end of the rotating motor 81. The other group of linkage gears 112 is coaxially connected with the disc 41.

[0055] In actual use, the rotating motor 81 drives the circular rod 61 to rotate. Under the cooperation of the annular rack 111, the two groups of linkage gears 112 are driven to rotate, so that the disc 41 rotates, and the connecting rod 47 is driven to rotate. Under the cooperation of the two groups of circular rings 48, the connecting column 44 and the push block 45 are driven to move, so that the scraper 43 moves on the upper surface of the filter screen 3. The impurities and activated carbon filtered on the upper surface of the filter screen 3 are scraped, so that the activated carbon and impurities filtered by the filter screen 3 are scraped and discharged from the upper surface of the filter screen 3.

[0056] Furthermore, the linkage gear 112 (module m=2, number of teeth Z=20) and the ring rack 111 (module m=2, number of teeth Z=100) constitute a planetary transmission with a transmission ratio i=5. The scraper-43 stroke frequency is 8 times / minute (adjustable range 5-12 times / minute). The elastic element is a silicon spring (wire diameter Φ2mm, outer diameter Φ15mm, free length 30mm, elastic coefficient k=15N / mm), with a pre-compression of 5mm, providing a constant contact pressure of 7.5N, and allowing ±3mm under overload. Elastic deformation prevents the mechanism from jamming. The scraper blade 43 uses a carbide tip (hardness HRC62-64) with a serrated edge (tooth pitch 5mm, tooth depth 1.5mm). When scraping, it generates shearing and crushing force on the slab carbon slag, and the crushed particle size is ≤2mm. The filter screen 3 uses a 316L sintered metal filter screen (pore size 50μm, porosity 40%) with a tungsten carbide coating (thickness 0.1mm) laser-fused on the surface, which improves wear resistance by 3 times. The filter screen 3 is installed at a 15° angle to use gravity to assist in slag discharge.

[0057] In this embodiment, a conveyor belt can be installed below the lower side of the filter screen 3. The scraper 43 pushes the filtered activated carbon and impurities onto the conveyor belt, which then transports the activated carbon to the regeneration furnace for regeneration.

[0058] Example 2

[0059] This embodiment is a further improvement on Embodiment 1, by replacing the structure of the filter mechanism 4. For details, please refer to... Figure 5 and Figure 6 The structure shown includes a filter mechanism 4 comprising a second disc 401, a slider 402, a limiting plate 403, a limiting frame 404, a cylindrical block 405, a housing 406, and a scraper 407. The cylindrical block 405 is fixedly connected to the edge of the lower surface of the second disc 401. The limiting frame 404 is fixedly connected to the surface of the fixing plate 10. The limiting plate 403 penetrates the limiting frame 404 and slides along the inner wall of the limiting frame 404. One end of the limiting plate 403 is fixedly connected to the slider 402. A through groove is formed on the surface of the slider 402. The cylindrical block 405 penetrates the through groove and slides along the inner wall of the through groove. The scraper 407 slides... The filter box 2 is connected to the inner surface of the outer shell 406 and extends out of the outer shell 406. A tension spring 409 is fixedly connected to one side surface of the scraper 407 located inside the outer shell 406. The end of the tension spring 409 away from the scraper 407 is fixedly connected to the inner wall of the outer shell 406. The outer shell 406 is connected to the slider 402. A mounting plate 12 is fixedly connected to the side of the filter box 2. A sliding groove 13 is opened on the surface of the mounting plate 12. A limiting block 408 is fixedly connected to the surface of the scraper 407. The limiting block 408 slides along the sliding groove 13. The limiting block 408 cooperates with the sliding groove 13 to control the up and down movement of the scraper 407.

[0060] The adsorption box 1 is equipped with a transmission component 11, which drives the disc 401 to rotate.

[0061] It should be noted that since the position of the water outlet of the conveying pipe 5 is fixed, the position of the coal gas water that needs to be filtered falling on the filter screen 3 is also fixed, so in actual use, after the filter screen 3 is used for a period of time, the installation position of the filter screen 3 can be adjusted so that the clean part of the filter screen 3 not contacting the coal gas water is adjusted to below the water outlet of the conveying pipe 5, thereby improving the utilization rate of the filter screen 3 and also improving the filtering effect.

[0062] In actual use, after the stirred coal gas water is conveyed to the filter screen 3 through the conveying pipe 5, the disc two 401 drives the cylindrical block 405 to rotate, and under the cooperation of the cylindrical block 405 and the through groove, the sliding block 402 drives the shell 406 and the scraper two 407 to move. When the scraper two 407 moves towards the end close to the water outlet of the conveying pipe 5, it moves tightly against the surface of the filter screen 3, and when the scraper two 407 moves back, it does not touch the filter screen 3. Through such a setting, it can prevent the filtered impurities and activated carbon from being scraped to the clean position to affect the use of the adjusted filter screen 3.

[0063] It should be noted that the filter screen 3 in the embodiment can be horizontally arranged or obliquely arranged, and the scraper two 407 is arranged in the same manner as the scraper one 43 in the first embodiment.

[0064] Reference Figures 7 to 9 As shown in part of the structure, the chute 13 includes an upward segment 131, a downward segment 132, and two groups of straight segments 133. The two groups of straight segments 133 are arranged in parallel, and the upward segment 131 and the downward segment 132 are respectively connected to the two ends of the two groups of straight segments 133. The upward segment 131, the downward segment 132, and the two groups of straight segments 133 form a ring-shaped chute 13.

[0065] It should be noted that the upward segment 131 and the downward segment 132 are both arranged obliquely.

[0066] In actual use, the contact between the scraper two 407 and the filter screen 3 is controlled through the cooperation of the chute 13 and the limiting block 408. The initial position of the limiting block 408 is located at the end of the lower side straight segment 133 of the downward segment 132 of the chute 13. When the disc two 401 rotates, the limiting block 408 first slides along the lower side straight segment 133 of the chute 13, and then passes through the upward segment 131, the upper side straight segment 133, and the downward segment 132 in sequence before returning to the original position.

[0067] It should be further noted that when the limiting block 408 is located at the lower side straight segment 133 of the chute 13, the scraper two 407 tightly abuts against the filter screen 3, and when the limiting block 408 is located at the upper side straight segment 133 of the chute 13, the scraper two 407 is away from the filter screen 3.

[0068] Reference Figure 9and Figure 10 As shown in the partial structure, the inner wall of the sliding groove 13 is provided with sliding grooves 14 at the positions of the ascending section 131 and the descending section 132, two groups of the sliding grooves 14 are slidably connected with the stoppers 15, the stoppers 15 are fixedly connected with the compression springs 16 on one side surface in the sliding grooves 14, the compression springs 16 are fixedly connected with the inner wall of the sliding grooves 14 at the positions away from the stoppers 15, and the surface of the stoppers 15, which is located outside the sliding grooves 14 and in contact with the limiting block 408, is obliquely arranged.

[0069] Specifically, one group of the stoppers 15 is located at the position of the ascending section 131 close to one end of the upper straight section 133 of the sliding groove 13, and the other group of the stoppers 15 is located at the position of the descending section 132 close to one end of the lower straight section 133 of the sliding groove 13.

[0070] It should be noted that the cooperation of the compression springs 16 and the stoppers 15 can prevent the limiting block 408 from moving reversely, specifically, when the limiting block 408 moves to the position of the stopper 15, the stopper 15 is pressed into the sliding groove 14, and when the limiting block 408 moves away from the stopper 15, the stopper 15 is popped out of the sliding groove 14 under the action of the compression spring 16, thereby preventing the limiting block 408 from moving reversely.

[0071] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the utility model patent scope. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection scope of the utility model.

Claims

1. A coal gasification coal gas water phenol removal device, characterized in that, The utility model provides absorbent box, filter box and filter screen, be equipped with stirring mechanism in the absorbent box for stirring activated carbon and coal gas water, the filter box is located one side of absorbent box, the side of absorb absorbent box is fixedly connected with the delivery pipeline in the position close to the bottom end, is used for the delivery coal gas water of adding activated carbon, the filter screen is installed on the filter box, the water outlet of delivery pipeline is located the top of filter screen, be equipped with filter mechanism on the filter screen, is used for scraping activated carbon and impurity on the surface of filter screen; The stirring mechanism includes a forward stirring assembly, a reverse stirring assembly and a driving assembly, the driving assembly includes a forward driving assembly and a reverse driving assembly, the forward driving assembly drives the forward stirring assembly to stir the activated carbon and the coal gas water clockwise, and meanwhile the reverse driving assembly drives the reverse stirring assembly to stir the activated carbon and the coal gas water counterclockwise.

2. The coal gasification coal gas water dephenolization device according to claim 1, characterized in that: The stirring mechanism is connected to the fixed plate.

3. The apparatus for removing phenol from coal gas in underground coal gasification according to claim 2, characterized in that: The forward stirring assembly includes a round rod, a round plate one, a plurality of long plates and long rods corresponding to the long plates, the round plate one is fixedly sleeved on the surface of the round rod close to the upper end, the plurality of long plates are circumferentially connected to the surface of the round plate one, the long rods are fixedly connected to the lower surfaces of the long plates, and the forward driving assembly drives the round rod to rotate clockwise. The reverse stirring assembly includes a sleeve, a round plate two, a plurality of short plates and short rods corresponding to the short plates, the sleeve is sleeved on the surface of the round rod, the round plate two is sleeved on the surface of the sleeve close to the lower end, the plurality of short plates are circumferentially connected to the surface of the round plate two, the short rods are fixedly connected to the upper surfaces of the short plates, the reverse driving assembly drives the sleeve to rotate counterclockwise, and the long rods and the short rods are both arranged obliquely.

4. The apparatus for removing phenol from coal gas in underground coal gasification according to claim 3, characterized in that: The forward driving assembly is a rotating motor, the rotating motor is connected to the fixed plate, the upper end of the round rod is fixedly connected to the driving end of the rotating motor, and the other end is rotatably connected to the inner bottom of the absorbent box. The reverse driving assembly includes a vertical bevel gear and two groups of horizontal bevel gears, one group of the horizontal bevel gears is fixedly sleeved on the surface of the round rod, the other group of the horizontal bevel gears is fixedly sleeved on the surface of the sleeve, the vertical bevel gear is engaged with the two groups of horizontal bevel gears and rotatably connected to the surface of the round rod through a rotating shaft.

5. The apparatus for removing phenol from coal gas in underground coal gasification according to claim 2, characterized in that: The filter screen is arranged obliquely.

6. The apparatus for removing phenol from coal gas in underground coal gasification according to claim 5, characterized in that: The filter mechanism includes a disc one, an elastic member, a scraper one, a connecting column, a push block and two groups of connecting members, the scraper one is slidably connected to the filter box, the lower surface of the disc one is connected with a connecting rod, the two groups of connecting members are respectively connected to the two ends of the elastic member, the two groups of connecting members away from the elastic member are both provided with a circular ring, one group of the circular rings is rotatably connected with the connecting rod and fixedly connected with the connecting member close to the connecting rod, the other group of the circular rings is fixedly connected with the connecting column and rotatably connected with the connecting member close to the push block, the connecting column is fixedly connected to the push block, the scraper one is fixedly connected with the push block, and the absorbent box is provided with a transmission assembly, and the transmission assembly drives the disc one to rotate.

7. The apparatus for removing phenol from coal gas in underground coal gasification according to claim 2, characterized in that: The filtering mechanism comprises a disc two, a sliding block, a limiting plate, a limiting frame, a cylindrical block, a shell and a scraper two, the cylindrical block is fixedly connected to the edge of the lower surface of the disc two, the limiting frame is fixedly connected to the surface of the fixed plate, the limiting plate penetrates through the limiting frame and slides along the inner wall of the limiting frame, one end of the limiting plate is fixedly connected with the sliding block, a through groove is formed in the surface of the sliding block, the cylindrical block penetrates through the through groove and slides along the inner wall of the through groove, the scraper two is slidingly connected in the shell and extends out of the shell, a stretching spring is fixedly connected to the side surface of the scraper two in the shell, the end, away from the scraper two, of the stretching spring is fixedly connected with the inner wall of the shell, the shell is connected to the sliding block, the side surface of the filtering box is fixedly connected with a mounting plate, a sliding groove is formed in the surface of the mounting plate, the surface of the scraper two is fixedly connected with a limiting block, the limiting block slides along the sliding groove, and the limiting block controls the up-down movement of the scraper two in cooperation with the sliding groove. The adsorption box is provided with a transmission assembly, and the transmission assembly drives the disc two to rotate.

8. The apparatus for removing phenol from coal gas in underground coal gasification according to claim 7, characterized in that: The sliding groove comprises an upward segment, a downward segment and two groups of straight segments, the two groups of straight segments are arranged in parallel, the upward segment and the downward segment are connected to the two ends of the two groups of straight segments respectively, and the upward segment, the downward segment and the two groups of straight segments form a ring-shaped sliding groove.

9. The apparatus for removing phenols from coal gas produced in underground coal gasification according to claim 8, characterized in that: The inner wall of the sliding groove is provided with sliding grooves at the upward segment and the downward segment, two groups of the sliding grooves are slidingly connected with the stop blocks, the side surface, of the two groups of the stop blocks, in the sliding grooves is fixedly connected with compression springs, the end, away from the stop blocks, of the compression springs is fixedly connected with the inner wall of the sliding groove, and the surface, of the stop blocks, which is located outside the sliding groove and contacts the limiting block is arranged in an inclined manner.

10. The apparatus for removing phenol from coal gas in underground coal gasification according to claim 6 or 7, characterized in that: The transmission assembly comprises a ring-shaped rack and two groups of linkage gears, the ring-shaped rack is sleeved on the surfaces of the two groups of linkage gears, one group of linkage gears is fixedly connected to the driving end of the rotating motor, and the other group of linkage gears is coaxially connected with the disc one.

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