Wastewater treatment equipment in process of preparing tetrahydrofuran from LBDO

Abstract

The utility model discloses wastewater treatment equipment in a process of preparing tetrahydrofuran from LBDO, and relates to the technical field of wastewater treatment. The device comprises a supporting seat, a waste water tank is mounted at the top of the supporting seat, a screen is inserted into the waste water tank, the device further comprises a cleaning part, and the cleaning part is mounted at the top of the waste water tank and used for cleaning the interior of the waste water tank. By arranging the cleaning part, specifically, during cleaning, a water pipe is connected into a water injection pipe, a motor is started to drive a first bidirectional lead screw to rotate, a movable frame moves rightwards, a second scraper at the bottom of the movable frame conducts scraping operation, a first belt pulley drives a transmission rod to rotate through a belt, a bevel gear drives a second bevel gear and a second bidirectional lead screw to rotate, and a lifting frame moves downwards; the first scraper at the bottom of the waste water tank scrapes condensate on the inner wall of the waste water tank, the inner wall of the waste water tank can be efficiently cleaned through reciprocating movement of the movable frame and the lifting frame and water flow flushing, and workers do not need to frequently use manpower for cleaning operation.

Description

TECHNICAL FIELD

[0001] The utility model belongs to wastewater treatment technical field, especially, relate to a wastewater treatment equipment in LBDO preparation tetrahydrofuran process. BACKGROUND

[0002] Tetrahydrofuran (THF) is an important cyclic ether compound, has excellent chemical stability, is widely used in medicine, pesticide, polymer material (such as polyurethane, polytetramethylene ether glycol PTMEG), fine chemical industry and other fields, in the industrial production of tetrahydrofuran (THF), wastewater treatment is the key link of environmental protection standard;

[0003] When treating wastewater, the existing coagulation method is often used, mainly by adding coagulant and flocculant, the suspended solids, colloidal particles and part of organic matter in wastewater are destabilized and aggregated, and then the coagulum is intercepted through the filter screen, but after long-term use, a large amount of coagulum will be accumulated on the inner wall and bottom of the wastewater tank, in order to not affect normal use, at this time, the staff needs to use tools to clean the wastewater tank, this method has high cleaning frequency and complicated operation, and also greatly increases the workload of the staff, therefore, we propose a wastewater treatment equipment in LBDO preparation tetrahydrofuran process. UTILITY MODEL CONTENT

[0004] The utility model discloses a wastewater treatment equipment in LBDO preparation tetrahydrofuran process, through setting up cleaning part, specifically is cleaning, starts motor, and connects water pipe into water injection pipe, and motor drives the belt disc one and the two-way screw rod one rotation, makes the moving frame move to the right, and its bottom scraper no. 2 carries out scraping operation, moves to the right limit position and continues to scrape after reverse movement, and the belt disc one drives the transmission rod rotation through the belt, makes bevel gear drive bevel gear no. 2 rotation, simultaneously makes two-way screw rod no. 2 follow rotation, and the lifting frame moves down, and its bottom scraper no. 1 scrapes the coagulum in wastewater tank inner wall, through the reciprocating movement of moving frame and lifting frame and the flow washing, can efficiently clean wastewater tank inner wall, no longer need staff to use manpower frequently to clean, solve the problem that staff needs to use tools frequently to clean wastewater tank when treating wastewater, greatly increase the workload of staff.

[0005] To solve the above technical problems, the utility model is realized through the following technical schemes:

[0006] The utility model discloses a wastewater treatment equipment in LBDO preparation tetrahydrofuran process, including support seat, the support seat top is installed with wastewater tank, wastewater tank left side installs the water inlet pipe, wastewater tank left side installs the support column, wastewater tank right side installs the drain pipe, wastewater tank top installs the dust cover, wastewater tank inside is inserted with screen cloth, still include:

[0007] A cleaning part is installed on the top of the wastewater tank and is used to clean the inside of the wastewater tank.

[0008] A dismounting part is installed on the top of the wastewater tank and is used to quickly dismount the screen.

[0009] The support base provides support, two water injection pipes are fixedly connected to the top of the wastewater tank, a feeding pipe is fixedly connected to the top of the wastewater tank, a sewage pipe is fixedly connected to the bottom of the wastewater tank and is used to discharge condensate in the wastewater tank, and a flow guide groove is formed in the bottom of the inner wall of the wastewater tank.

[0010] Further, the cleaning part comprises a bottom cleaning assembly installed on the top of the wastewater tank, which can efficiently clean the condensate deposited on the bottom of the inner wall of the wastewater tank.

[0011] A transmission assembly is installed above the bottom cleaning assembly and is used to transmit power.

[0012] An inner wall cleaning assembly is installed on the top of the wastewater tank and can effectively clean the condensate attached to the four sides of the inner wall of the wastewater tank.

[0013] The power is transmitted by the transmission assembly, so that the bottom cleaning assembly and the inner wall cleaning assembly can work simultaneously to clean the inside of the wastewater tank.

[0014] Further, the dismounting part is installed on the top of the wastewater tank and is used to quickly dismount the screen.

[0015] There are two groups of dismounting parts, which are respectively distributed on the front and back surfaces of the top of the wastewater tank.

[0016] Further, the bottom cleaning assembly comprises a motor, a double-thread screw one is fixedly connected to the right side output end of the motor through a shaft coupling, a belt disc one is fixedly connected to the outer surface of the double-thread screw one, a moving frame is slidably connected to the outer surface of the double-thread screw one, and a scraper is fixedly connected to the bottom of the moving frame.

[0017] The motor is fixedly connected to the support column, two support blocks are rotatably connected to the outer surface of the double-thread screw one, and the bottoms of the two support blocks are fixedly connected to the top of the wastewater tank. The support blocks provide support for the double-thread screw one, so that it can stably rotate.

[0018] Further, the transmission assembly comprises a transmission rod, a belt disc two is fixedly connected to the outer surface of the transmission rod, a bevel gear is fixedly connected to the right side of the transmission rod, and the transmission rod is rotatably connected to the support frame.

[0019] The first pulley and the second pulley are connected through a belt, and the support frame supports the transmission rod.

[0020] Further, the inner wall cleaning assembly comprises a U-shaped frame, a support frame is fixedly connected to the left side of the U-shaped frame, the support frame is rotationally connected with the transmission rod, a bidirectional screw rod two is rotationally connected with the U-shaped frame, a bevel gear two is fixedly connected to the top of the bidirectional screw rod two, a lifting frame is rotationally connected to the outer surface of the bidirectional screw rod two, and a scraper frame is fixedly connected to the bottom of the lifting frame.

[0021] The bevel gear two is meshingly connected with the bevel gear, the transmission rod is supported by the support column and the support frame, the lifting frame and the scraper frame are in sliding limiting cooperation, and four groups of scrapers are arranged on the scraper frame.

[0022] Further, the disassembling part comprises two clamping seats, a clamping groove is formed in the clamping seat, two fixed blocks are fixedly connected to the top of the screen, a vertical rod is slidably connected in the fixed block, a special-shaped block is fixedly connected to the bottom of the vertical rod, a spring one is sleeved on the outer side of the vertical rod, the top of the spring one is fixedly connected with the inner wall of the fixed block, the bottom of the spring one is fixedly connected with the top of the special-shaped block, two clamping blocks are slidably connected in the fixed block, a spring two is arranged in the fixed block, one end of the spring two is fixedly connected with the clamping block on the left side, and the other end of the spring two is fixedly connected with the clamping block on the right side.

[0023] The bottom of the special-shaped block is provided with a V-shaped notch, and the side, away from each other, of the two clamping blocks is provided with an inclined surface.

[0024] The utility model has the following beneficial effects:

[0025] 1. The cleaning part is provided, and when cleaning, the water pipe is connected to the water injection pipe, the motor is started to drive the bidirectional screw rod one to rotate, the moving frame moves to the right, the bottom scraper two performs scraping operation, after moving to the right limit position, the reverse movement continues to scrape, the first pulley drives the transmission rod to rotate through the belt, the bevel gear drives the bevel gear two and the bidirectional screw rod two to rotate, the lifting frame moves downward, the bottom scraper one scrapes the condensate in the inner wall of the wastewater tank, and through the reciprocating movement of the moving frame and the lifting frame and the water flow washing, the inner wall of the wastewater tank can be efficiently cleaned, and the staff no longer needs to frequently use manpower for cleaning operation.

[0026] 2, the utility model discloses a dismounting part is set, specifically is two vertical rods are pressed simultaneously, and it drives special-shaped block to descend, and special-shaped block extrudes clamping block to make it close to each other and separate from the clamping groove, can take out the screen, and the vertical rod is released, and spring one makes special-shaped block reset, when installing back, press vertical rod, and special-shaped block extrudes clamping block again, and the screen is installed back to the wastewater tank, then the vertical rod is released, and spring two reset clamping block through the elastic force, complete screen fixing, this mode can quickly dismount the screen, improve the cleaning efficiency of staff.

[0027] Of course, it is not necessary for any product embodying the present utility model to achieve all of the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme of the embodiments of the present utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are only some embodiments of the present utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0029] Figure 1 It is the whole structure schematic diagram of the present utility model;

[0030] Figure 2 It is the whole structure schematic diagram of the present utility model cleaning part;

[0031] Figure 3 It is the whole structure schematic diagram of the present utility model bottom cleaning assembly;

[0032] Figure 4 It is the internal structure schematic diagram of the present utility model wastewater tank;

[0033] Figure 5 It is the whole structure schematic diagram of the present utility model dismounting part.

[0034] In the drawings, the component list represented by each sign is as follows:

[0035] 1, support seat; 11, wastewater tank; 111, drain pipe; 112, water inlet pipe; 113, sewage pipe; 12, dust cover; 2, cleaning part; 211, water injection pipe; 212, feeding pipe; 22, screen; 23, support column; 24, bottom cleaning assembly; 241, motor; 242, belt disc one; 243, two-way screw rod one; 244, support block; 245, moving frame; 25, transmission assembly; 251, transmission rod; 252, belt disc two; 253, bevel gear; 26, inner wall cleaning assembly; 261, U-shaped frame; 262, two-way screw rod two; 263, bevel gear two; 264, lifting frame; 265, support frame; 271, scraper frame; 272, scraper; 3, disassembly part; 31, clamping seat; 311, clamping groove; 32, fixed block; 33, vertical rod; 34, special-shaped block; 35, spring one; 36, clamping block; 37, spring two. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0037] Please refer to Figures 1-5 The utility model discloses a kind of wastewater treatment equipment in LBDO preparation tetrahydrofuran process, including support seat 1, support seat 1 top is equipped with wastewater tank 11, wastewater tank 11 left side is equipped with water inlet pipe 112, wastewater tank 11 left side is equipped with support column 23, wastewater tank 11 right side is equipped with drain pipe 111, wastewater tank 11 top is equipped with dust cover 12, screen 22 is inserted in wastewater tank 11, further including:

[0038] Cleaning part 2, cleaning part 2 is installed on the top of wastewater tank 11, and cleaning part 2 is used for cleaning the inside of wastewater tank 11.

[0039] Disassembly part 3, disassembly part 3 is installed on the top of wastewater tank 11, and disassembly part 3 plays a role in quickly disassembling screen 22.

[0040] Among them, support seat 1 plays a supporting role, two water injection pipes 211 are fixedly connected to the top of wastewater tank 11, feeding pipe 212 is fixedly connected to the top of wastewater tank 11, sewage pipe 113 is fixedly connected to the bottom of wastewater tank 11, sewage pipe 113 is used for discharging condensate in wastewater tank 11, and a flow guide groove is formed in the bottom of the inner wall of wastewater tank 11.

[0041] The cleaning part 2 comprises a bottom cleaning assembly 24 installed on the top of the wastewater tank 11, which can effectively clean the condensate deposited on the bottom of the inner wall of the wastewater tank 11.

[0042] A transmission assembly 25 is installed above the bottom cleaning assembly 24, which is used for power transmission.

[0043] An inner wall cleaning assembly 26 is installed on the top of the wastewater tank 11, which can effectively clean the condensate attached to the four walls of the inner wall of the wastewater tank 11.

[0044] The power is transmitted through the transmission assembly 25, so that the bottom cleaning assembly 24 and the inner wall cleaning assembly 26 can work simultaneously to clean the inside of the wastewater tank 11.

[0045] The disassembly part 3 is installed on the top of the wastewater tank 11, which is used for quick disassembly and assembly of the screen 22.

[0046] The disassembly part 3 is provided with two groups, which are respectively distributed on the front and back of the top of the wastewater tank 11.

[0047] The bottom cleaning assembly 24 comprises a motor 241, the right output end of the motor 241 is fixedly connected with a bidirectional screw rod one 243 through a shaft coupling, the outer surface of the bidirectional screw rod one 243 is fixedly connected with a belt disc one 242, the outer surface of the bidirectional screw rod one 243 is slidably connected with a moving frame 245, and the bottom of the moving frame 245 is fixedly connected with a scraper 272.

[0048] The motor 241 is fixedly connected with the supporting column 23, two supporting blocks 244 are rotatably connected with the outer surface of the bidirectional screw rod one 243, and the bottoms of the two supporting blocks 244 are fixedly connected with the top of the wastewater tank 11, so that the bidirectional screw rod one 243 is stably rotated.

[0049] The transmission assembly 25 comprises a transmission rod 251, the outer surface of the transmission rod 251 is fixedly connected with a belt disc two 252, the right side of the transmission rod 251 is fixedly connected with a bevel gear 253, and the transmission rod 251 is rotatably connected with the supporting column 23.

[0050] The belt disc one 242 and the belt disc two 252 are drivingly connected through a belt, and the supporting column 23 supports the transmission rod 251.

[0051] The inner wall cleaning assembly 26 comprises a U-shaped frame 261, the left side of the U-shaped frame 261 is fixedly connected with a support frame 265, the support frame 265 is rotationally connected with the transmission rod 251, the U-shaped frame 261 is rotationally connected with a bidirectional screw rod two 262, the top of the bidirectional screw rod two 262 is fixedly connected with a bevel gear two 263, the outer surface of the bidirectional screw rod two 262 is rotationally connected with a lifting frame 264, and the bottom of the lifting frame 264 is fixedly connected with a scraper frame 271; when cleaning, the water pipe is connected to the water injection pipe 211, the motor 241 is started to drive the bidirectional screw rod one 243 to rotate, the moving frame 245 moves to the right, the bottom scraper 272 performs scraping work, after moving to the right limit position, the scraper continues to scrape in the reverse direction, the belt pulley one 242 drives the transmission rod 251 to rotate through the belt, the bevel gear two 263 and the bidirectional screw rod two 262 are driven to rotate by the bevel gear 253, the lifting frame 264 moves downward, the bottom scraper frame 271 scrapes the condensate in the wastewater tank 11, and the wastewater tank 11 can be efficiently cleaned through the reciprocating movement of the moving frame 245 and the lifting frame 264 and the flushing of water flow, and it is no longer necessary for the staff to frequently use manpower for cleaning work;

[0052] The bevel gear two 263 is meshingly connected with the bevel gear 253, the transmission rod 251 is supported by the support column 23 and the support frame 265, the lifting frame 264 is in sliding limiting connection with the wastewater tank 11, and four groups of scrapers are arranged on the scraper frame 271.

[0053] The disassembling part 3 comprises two clamping seats 31, the clamping seat 31 is internally provided with a clamping groove 311, the top of the screen 22 is fixedly connected with two fixed blocks 32, the vertical rod 33 is in sliding connection with the inside of the fixed block 32, the bottom of the vertical rod 33 is fixedly connected with a special-shaped block 34, the outside of the vertical rod 33 is sleeved with a spring one 35, the top of the spring one 35 is fixedly connected with the inner wall of the fixed block 32, the bottom of the spring one 35 is fixedly connected with the top of the special-shaped block 34, the inside of the fixed block 32 is slidingly connected with two clamping blocks 36, the inside of the fixed block 32 is provided with a spring two 37, one end of the spring two 37 is fixedly connected with the clamping block 36 on the left side, and the other end of the spring two 37 is fixedly connected with the clamping block 36 on the right side; meanwhile, the two vertical rods 33 are pressed, the special-shaped block 34 is driven to descend, the special-shaped block 34 extrudes the clamping blocks 36 to make them close to each other and be separated from the clamping grooves 311, and then the screen 22 can be taken out, the vertical rod 33 is loosened, the special-shaped block 34 is reset by the spring one 35, when being assembled, the vertical rod 33 is pressed, the special-shaped block 34 extrudes the clamping blocks 36 again, the screen 22 is assembled back to the wastewater tank 11, then the vertical rod 33 is loosened, the clamping blocks 36 are reset by the spring two 37 through the elastic force, and the fixing of the screen 22 is completed, in this way, the screen 22 can be quickly disassembled and assembled, and the cleaning efficiency of the staff is improved;

[0054] The bottom of the special-shaped block 34 is provided with a V-shaped notch, and the side of the two clamping blocks 36 away from each other is provided with an inclined surface, and the clamping block 36 is matched with the clamping groove 311.

[0055] One specific application of the embodiment is as follows: when in use, wastewater enters the wastewater tank 11 through the water inlet pipe 112, at this time, the coagulant is poured into the feeding pipe 212, the coagulant can make the colloid and suspended solids in the wastewater coagulate, at this time, the coagulum is blocked by the screen 22, and the wastewater is discharged through the drain pipe 111 for next step processing, when the coagulum on the inner wall and the bottom of the wastewater tank 11 is too much and needs to be cleaned, the motor 241 is started, and the water pipes are connected to the two water injection pipes 211 respectively, the wastewater tank 11 is flushed, the motor 241 drives the pulley 242 and the two-way lead screw 243 to rotate, at this time, the moving frame 245 moves to the right, and the scraper 272 at the bottom of the moving frame 245 scrapes the coagulum on the bottom of the wastewater tank 11, when the moving frame 245 moves to the right limit position, it moves reversely to continue scraping, the pulley 242 rotates to drive the pulley 252 and the transmission rod 251 to rotate through the belt, at the same time, the bevel gear 253 on the transmission rod 251 drives the bevel gear 263 to rotate, and the bevel gear 263 drives the two-way lead screw 262 to rotate, at this time, the lifting frame 264 moves downward, and the scraper frame 271 at the bottom of the lifting frame 264 scrapes the inner wall of the wastewater tank 11, at the same time, the water flow in the water injection pipe 211 flushes the coagulum on the inner wall of the wastewater tank 11 and the scraper frame 271, and also flushes the coagulum on the bottom of the inner wall of the wastewater tank 11, so that the coagulum and the water flow are discharged from the drain pipe 113 through the drain groove on the bottom of the wastewater tank 11, and the reciprocating movement of the moving frame 245 and the lifting frame 264 can clean the inner wall of the wastewater tank 11 well in cooperation with the water flow;

[0056] When the screen 22 needs to be replaced, the two vertical rods 33 are pressed at the same time, the vertical rod 33 drives the special-shaped block 34 to descend, the inclined surface at the bottom of the special-shaped block 34 extrudes the two clamping blocks 36 to move close to each other, at this time, the clamping block 36 is away from the clamping groove 311, so that the screen 22 can be taken out, then the vertical rod 33 is released, the spring 35 resets the special-shaped block 34 through the elastic force of itself, when the screen 22 is reinstalled, the vertical rod 33 is pressed, the special-shaped block 34 extrudes the two clamping blocks 36, at this time, the screen 22 is installed in place, when the bottom of the screen 22 contacts the inner wall of the wastewater tank 11, the vertical rod 33 is released, at this time, the spring 37 resets the two clamping blocks 36 through the elastic force of itself, and the fixing of the screen 22 is completed.

[0057] In the description of the specification, the description of the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0058] The preferred embodiments of the utility model disclosed above are only used for helping to set forth the utility model. The preferred embodiments do not describe all the details exhaustively, and also do not limit the utility model to only the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited only by the claims and the entire scope and equivalents thereof.

Claims

1. A wastewater treatment plant for the production of tetrahydrofuran from LBDO, comprising a support base (1), characterized by: The support seat (1) top is provided with a wastewater tank (11), the wastewater tank (11) left side is provided with a water inlet pipe (112), the wastewater tank (11) left side is provided with a support column (23), the wastewater tank (11) right side is provided with a drain pipe (111), the wastewater tank (11) top is provided with a dust cover (12), the wastewater tank (11) inside is inserted with a screen (22), further comprising: Cleaning part (2), the cleaning part (2) is installed on the top of the wastewater tank (11), the cleaning part (2) is used for cleaning inside the wastewater tank (11);And Disassembling part (3), the disassembling part (3) is installed on the top of the wastewater tank (11), the disassembling part (3) is used for the quick disassembly of the screen (22); Wherein, the support seat (1) plays a supporting role, the wastewater tank (11) top is fixedly connected with two water injection pipes (211), the wastewater tank (11) top is fixedly connected with a feeding pipe (212), the wastewater tank (11) bottom is fixedly connected with a blowdown pipe (113), the blowdown pipe (113) is used for discharging the condensate in the wastewater tank (11), and the wastewater tank (11) inner wall bottom is provided with a flow guide groove.

2. The apparatus for treating wastewater in a process for producing tetrahydrofuran by LBDO according to claim 1, wherein The cleaning part (2) includes a bottom cleaning assembly (24), the bottom cleaning assembly (24) is installed on the top of the wastewater tank (11), and the bottom cleaning assembly (24) can efficiently clean the condensate deposited on the bottom of the wastewater tank (11); Transmission assembly (25), the transmission assembly (25) is installed above the bottom cleaning assembly (24), and the transmission assembly (25) is used for power transmission;And Inner wall cleaning assembly (26), the inner wall cleaning assembly (26) is installed on the top of the wastewater tank (11), and the inner wall cleaning assembly (26) can effectively clean the condensate attached to the four walls of the wastewater tank (11); Wherein, the power is transmitted through the transmission assembly (25), so that the bottom cleaning assembly (24) and the inner wall cleaning assembly (26) work simultaneously to clean the inside of the wastewater tank (11).

3. The apparatus for treating wastewater in a process for producing tetrahydrofuran by LBDO according to claim 2, wherein The disassembling part (3) is installed on the top of the wastewater tank (11), and the disassembling part (3) is used for quickly disassembling the screen (22); Wherein, the disassembling part (3) is provided with two groups, and is distributed on the front and back of the top of the wastewater tank (11) respectively.

4. The apparatus for treating wastewater in a process for producing tetrahydrofuran by LBDO according to claim 3, wherein The bottom cleaning assembly (24) includes a motor (241), the motor (241) right side output end is fixedly connected with a bidirectional screw rod one (243) through a shaft coupling, the bidirectional screw rod one (243) outer surface is fixedly connected with a belt disc one (242), the bidirectional screw rod one (243) outer surface is slidably connected with a moving frame (245), and the moving frame (245) bottom is fixedly connected with a scraper (272). The motor (241) is fixedly connected with the supporting column (23), two supporting blocks (244) are rotationally connected to the outer surface of the bidirectional screw rod (243), and the bottoms of the two supporting blocks (244) are fixedly connected with the top of the wastewater tank (11), the supporting blocks (244) support the bidirectional screw rod (243) so that the bidirectional screw rod (243) can stably rotate.

5. The apparatus for treating wastewater in a process for producing tetrahydrofuran by LBDO according to claim 4, wherein The transmission assembly (25) comprises a transmission rod (251), the outer surface of the transmission rod (251) is fixedly connected with a belt disc (252), the right side of the transmission rod (251) is fixedly connected with a bevel gear (253), and the transmission rod (251) is rotationally connected with the supporting column (23). The belt disc (242) is drivingly connected with the belt disc (252), and the supporting column (23) supports the transmission rod (251).

6. The apparatus for treating wastewater in a process for producing tetrahydrofuran by LBDO according to claim 5, wherein The inner wall cleaning assembly (26) comprises a U-shaped frame (261), the left side of the U-shaped frame (261) is fixedly connected with a supporting frame (265), the supporting frame (265) is rotationally connected with the transmission rod (251), the U-shaped frame (261) is rotationally connected with a bidirectional screw rod (262), the top of the bidirectional screw rod (262) is fixedly connected with a bevel gear (263), the outer surface of the bidirectional screw rod (262) is rotationally connected with a lifting frame (264), and the bottom of the lifting frame (264) is fixedly connected with a scraper frame (271). The bevel gear (263) is meshingly connected with the bevel gear (253), the transmission rod (251) is supported by the supporting column (23) and the supporting frame (265) so as to rotate more stably, the lifting frame (264) is slidingly and limitingly connected with the wastewater tank (11), and four groups of scrapers are arranged on the scraper frame (271).

7. The apparatus for treating wastewater in a process for producing tetrahydrofuran by LBDO according to claim 6, wherein The disassembling part (3) comprises two clamping seats (31), the clamping seat (31) is internally provided with a clamping groove (311), the top of the screen (22) is fixedly connected with two fixed blocks (32), the fixed block (32) is internally and slidably connected with a vertical rod (33), the bottom of the vertical rod (33) is fixedly connected with a special-shaped block (34), the outer side of the vertical rod (33) is sleeved with a spring (35), the top of the spring (35) is fixedly connected with the inner wall of the fixed block (32), the bottom of the spring (35) is fixedly connected with the top of the special-shaped block (34), the fixed block (32) is internally and slidably connected with two clamping blocks (36), the fixed block (32) is internally provided with a spring (37), one end of the spring (37) is fixedly connected with the clamping block (36) on the left side, and the other end of the spring (37) is fixedly connected with the clamping block (36) on the right side. The bottom of the special-shaped block (34) is provided with a V-shaped notch, and the sides, away from each other, of the two clamping blocks (36) are both provided with inclined surfaces, and the clamping block (36) is matched with the clamping groove (311).

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