Cleaning device for furnace door of diffusion furnace for solar cell

Abstract

The utility model relates to the technical field of diffusion furnaces, in particular to a cleaning device for a furnace door of a diffusion furnace for a solar cell, which comprises a cleaning support table, bearing assemblies are arranged in the centers of two sides of the top end face of the cleaning support table, and a sewage storage frame is connected and mounted above the tops of the two bearing assemblies. A sewage discharging assembly is arranged in the center of the end face of the sewage storage frame, a sliding assembly is arranged on one side of the outer wall of the sewage storage frame, a cleaning seat is arranged above the top end of the sliding assembly, a cleaning assembly is arranged on the end face of the cleaning seat, and the cleaning assembly is located above the sewage storage frame; the cleaning device of the diffusion furnace door for the solar cell is convenient and fast to move; when the furnace door cleaning device is used, furnace doors of different heights and sizes can be conveniently cleaned, and the cleaning quality of the furnace doors can be effectively improved through flushing and brushing; meanwhile, sewage generated when the furnace door is cleaned can be conveniently collected, and the cleaning convenience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of diffusion furnace, especially relates to a kind of cleaning device of diffusion furnace door for solar cell piece. BACKGROUND

[0002] Diffusion furnace is the key equipment for high-temperature source diffusion of corresponding silicon wafer of solar cell;During high-temperature diffusion process, with the continuous source reaction in the furnace tube of diffusion furnace, the surface of the metal furnace door of diffusion furnace facing the furnace tube will accumulate a layer of metaphosphoric acid powder and crystallization, so that the furnace door needs to be cleaned;

[0003] In the prior art, when cleaning the furnace door, manual cleaning is usually used;This results in low efficiency of furnace door cleaning, and poor manual cleaning effect, thereby affecting the cleaning quality;Moreover, the sewage generated during cleaning can affect the on-site environment;Therefore, a cleaning device for the furnace door of the diffusion furnace for solar cell piece is proposed to solve the above problems. SUMMARY

[0004] The utility model solves the problem of providing a kind of cleaning device for the furnace door of the diffusion furnace for solar cell piece, and the structure is simple, and it is convenient and fast to move;Different height, size furnace door can be cleaned conveniently, and the cleaning quality of furnace door can be effectively improved by washing and brushing;At the same time, the sewage generated during furnace door cleaning is collected, and the convenience of cleaning is improved.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A kind of cleaning device for the furnace door of the diffusion furnace for solar cell piece, including cleaning support, the top end surface both sides of the cleaning support are provided with supporting assembly, and the top of two supporting assemblies is connected with the sewage storage rack, the end surface of the sewage storage rack is provided with sewage discharge assembly, the outer wall of the sewage storage rack one side is provided with sliding assembly, and the top of sliding assembly is provided with cleaning seat, the end surface of the cleaning seat is provided with cleaning assembly, and cleaning assembly is located above sewage storage rack;

[0007] The third electric cylinder is fixedly installed at the top center of the cleaning seat, and one end of the third electric cylinder penetrates one side end surface of the cleaning seat, one end of the third electric cylinder is provided with a third piston push rod, and one end of the third piston push rod is fixedly installed with a cleaning machine shell, the inside center of the cleaning machine shell is fixedly installed with a cleaning motor, and the center of one end of the cleaning motor is provided with a cleaning rotating shaft, one end of the cleaning machine shell is fixedly installed with a mounting partition plate, and one end of the cleaning rotating shaft is fixedly installed with a brush head back frame through the mounting partition plate, the outside of the brush head back frame is fixedly installed with a cleaning brush head, and the top end surface of the mounting partition plate is fixedly installed with a flow guide cover, the inside of the flow guide cover is connected and installed with an atomizing nozzle, and the atomizing nozzle is located at the top side of the cleaning brush head.

[0008] Further, the dust cover is fixedly installed at one side of the end surface edge of the cleaning seat, and the dust cover is located at the outside of the third electric cylinder, so as to effectively reduce the accumulation of dust on the outside of the third electric cylinder; a plurality of heat dissipation holes are formed in the end surface of the cleaning machine shell, and the heat dissipation holes are in communication with the inside of the cleaning machine shell, so as to facilitate heat dissipation when the cleaning motor works; a cleaning through hole is formed in the center of one end of the mounting partition plate, and the cleaning rotating shaft penetrates the cleaning through hole and is connected with the brush head back frame, so as to facilitate transmission and make the inside of the cleaning machine shell communicate with the outside, thereby improving the heat dissipation rate of the cleaning motor.

[0009] Further, the spraying pump is fixedly installed at the other center of the top of the mounting partition plate, and the elastic telescopic pipe is installed at the center of one side of the spraying pump, the water outlet pipe is installed at the top center of the spraying pump, one end of the water outlet pipe is fixedly connected with the atomizing nozzle through the flow guide cover, the water storage tank is fixedly installed at one side of the bottom of the cleaning seat, and one end of the bottom of the elastic telescopic pipe is in communication with the inside bottom of the water storage tank; when the spraying pump works, the cleaning liquid in the inside of the water storage tank can be extracted and delivered to the water outlet pipe through the elastic telescopic pipe, and then delivered to the atomizing nozzle through the water outlet pipe, so as to facilitate the flushing of the furnace door; at the same time, when the position of the cleaning machine shell is adjusted, the elastic telescopic pipe can be stretched, so as not to affect the liquid delivery.

[0010] Further, a plurality of limiting frames are fixedly installed at the end surface of the cleaning seat and the outside end surface of the water storage tank, and the elastic telescopic pipe penetrates the center of the end surface of the plurality of limiting frames; the elastic telescopic pipe can be limited by the limiting frames, so as to avoid the scattering caused by the telescopic adjustment of the elastic telescopic pipe.

[0011] Further, the supporting assembly comprises two stepped holes, which are respectively arranged at the central positions of the top end faces of the cleaning support table, and the end faces of the stepped holes are fixedly installed with anti-dropping supports, the end faces of the anti-dropping supports are fixedly installed with first electric cylinders, the top end centers of the first electric cylinders are fixedly installed with first piston push rods, the top ends of the first piston push rods are fixedly connected with the bottom end face of the sewage storage rack, and the bottom end faces of the first electric cylinders are fixedly connected with the cross beam frame.

[0012] Further, the sewage discharging assembly comprises a sewage discharging groove, which is arranged at the central position of the inner end face of the sewage storage rack, and the inside of the sewage discharging groove is filled with an installed filter element, the bottom end face of the sewage storage rack is fixedly installed with a sewage discharging valve, the top end of the sewage discharging valve is in communication with the inside of the sewage discharging groove, the bottom end center of the sewage discharging valve is installed with a sewage discharging pipe, and the bottom end of the sewage discharging pipe penetrates through the cleaning support table; the sewage in the sewage storage rack can be conveniently discharged.

[0013] Further, the sliding assembly comprises two support hangers, which are fixedly installed at the bottom end of the sewage storage rack by welding, the bottom end of the support hanger is fixedly installed with a guide rail bottom plate, one end of the guide rail bottom plate is fixedly installed with an electric guide rail, the top end center of the electric guide rail is fixedly installed with a guide rail sliding table, the top end center of the guide rail sliding table is fixedly installed with a second electric cylinder, the top end center of the second electric cylinder is fixedly installed with a second piston push rod, the top end of the second piston push rod is fixedly connected with the bottom end of the cleaning seat, the outer wall of the second electric cylinder is fixedly installed with a guide seat, one end center of the guide seat is fixedly installed with a guide protrusion, one end of the outer wall of the sewage storage rack is arranged with a guide sliding groove, and one end of the guide protrusion is insertedly installed in the inside of the guide sliding groove; the position and height of the cleaning seat can be conveniently adjusted, so as to meet the cleaning use requirements of the furnace door.

[0014] Further, the bottom end face of the cleaning support table is fixedly installed with a pushing handle at the edge positions of the two sides by bolts, and the bottom end face of the cleaning support table is fixedly installed with a moving frame around by welding, the two side end faces of the cross beam frame are fixedly connected with the moving frame, the bottom end face of the moving frame is fixedly installed with four moving rollers, and the moving rollers are universal self-locking wheels.

[0015] The utility model discloses a cleaning device of solar cell piece diffusion furnace door has the advantages of simple structure, small and exquisite, through the self -locking formula gyro wheel of setting can be convenient for the device to move to the suitable use position, and the movement is convenient and fast, and the self -locking is firm, through the setting sliding component, the cleaning seat and the cleaning component can be convenient for the cleaning of the furnace door of different height, size in use, and the cleaning position adjustment is convenient, can effectively improve the cleaning efficiency, through the washing and the two kinds of cleaning mode of scrubbing, can effectively improve the cleaning quality of furnace door, simultaneously, through the support component and sewage storage frame convenient the sewage collection of furnace door cleaning time generation, improves the convenience of cleaning. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the first overall structure schematic drawing of the utility model;

[0017] Figure 2 It is the second overall structure schematic drawing of the utility model;

[0018] Figure 3 It is the overall front view of the utility model;

[0019] Figure 4 It is the overall plan view of the utility model;

[0020] Figure 5 It is Figure 4 The section view schematic drawing in A-A of middle;

[0021] Figure 6 It is Figure 4 The section view schematic drawing in B-B of middle;

[0022] Figure 7 It is the local structure schematic drawing of the utility model.

[0023] Legend:

[0024] 1, cleaning platform; 2, push handle; 3, moving frame; 4, moving roller; 5, support assembly; 6, sewage storage rack; 7, sliding assembly; 8, cleaning seat; 9, cleaning assembly; 10, sewage discharge assembly; 51, stepped hole; 52, anti-falling support; 53, first electric cylinder; 54, first piston push rod; 55, cross beam frame; 71, support hanging seat; 72, guide rail bottom plate; 73, electric guide rail; 74, guide rail sliding table; 75, second electric cylinder; 76, second piston push rod; 77, guide seat; 78, guide sliding groove; 79, guide protrusion; 91, third electric cylinder; 92, third piston push rod; 93, cleaning shell; 94, cleaning motor; 95, cleaning shaft; 96, brush head back frame; 97, cleaning brush head; 98, installation partition; 99, flow guide cover; 910, atomizing nozzle; 911, spraying pump; 912, water outlet pipe; 913, elastic telescopic pipe; 914, limiting frame; 915, water storage tank; 101, sewage discharge groove; 102, installation filter element; 103, sewage discharge valve; 104, sewage discharge pipe. DETAILED DESCRIPTION

[0025] 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.

[0026] Specific embodiments are given below.

[0027] Referring to Figures 1-7 A cleaning device for a furnace door of a solar cell diffusion furnace, comprising a cleaning platform 1, two support assemblies 5 are arranged on the top end face of the cleaning platform 1, and a sewage storage rack 6 is connected and mounted above the top of the two support assemblies 5. The cleaning platform 1 and the support assembly 5 can stably and firmly support the sewage storage rack 6, so that the sewage storage rack 6 has good supporting effect, and the sewage storage rack 6 can be conveniently adjusted through the support assembly 5, so as to conveniently meet the cleaning needs of the furnace door at different height positions. An sewage discharge assembly 10 is arranged on the end face of the sewage storage rack 6, so as to conveniently collect and discharge the sewage generated by cleaning the furnace door through the sewage discharge assembly 10. A sliding assembly 7 is arranged on one side of the outer wall of the sewage storage rack 6, and a cleaning seat 8 is arranged above the top end of the sliding assembly 7. A cleaning assembly 9 is arranged on the end face of the cleaning seat 8, and the cleaning assembly 9 is located above the sewage storage rack 6. The sliding assembly 7, the cleaning seat 8 and the cleaning assembly 9 are used to conveniently flush and clean the furnace door, and the water flushing and brushing can effectively improve the cleaning quality.

[0028] The third electric cylinder 91, the cleaning assembly 9 includes the third electric cylinder 91, the third electric cylinder 91 is fixedly installed at the top end of the cleaning seat 8, and one end of the third electric cylinder 91 penetrates through one side end surface of the cleaning seat 8, one end of the third electric cylinder 91 is provided with the third piston push rod 92, and one end of the third piston push rod 92 is fixedly installed with the cleaning machine shell 93, the inside of the cleaning machine shell 93 is fixedly installed with the cleaning motor 94, and the one end of the cleaning motor 94 is provided with the cleaning rotating shaft 95, one end of the cleaning machine shell 93 is fixedly installed with the installation partition plate 98, and the cleaning rotating shaft 95 is fixedly installed with the brush head back frame 96 through the installation partition plate 98, the outer side of the brush head back frame 96 is fixedly installed with the cleaning brush head 97, the top end surface of the installation partition plate 98 is fixedly installed with the flow guide cover 99, the inside of the flow guide cover 99 is connected and installed with the atomizing nozzle 910, and the atomizing nozzle 910 is located at the top side of the cleaning brush head 97; the top side of the installation partition plate 98 is fixedly installed with the spray pump 911, and the spray pump 911 is fixedly installed with the elastic telescopic pipe 913, the top end of the spray pump 911 is fixedly installed with the water outlet pipe 912, and one end of the water outlet pipe 912 is fixedly connected with the atomizing nozzle 910 through the flow guide cover 99, the bottom side of the cleaning seat 8 is fixedly installed with the water storage tank 915, and one end of the elastic telescopic pipe 913 is in communication with the inside bottom of the water storage tank 915; after the cleaning brush head 97 of a suitable specification is fixedly installed on one side of the brush head back frame 96, the third electric cylinder 91 works, the cleaning machine shell 93 can be pushed through the third piston push rod 92, so that the cleaning brush head 97 on the outside of the cleaning machine shell 93 is attached to the end surface of the oven door, the cleaning motor 94 in the cleaning machine shell 93 works, the brush head back frame 96 and the cleaning brush head 97 are driven to rotate through the cleaning rotating shaft 95, at the same time, the spray pump 911 on the end surface of the installation partition plate 98 works, the cleaning liquid in the water storage tank 915 can be pumped and delivered to the water outlet pipe 912 through the elastic telescopic pipe 913, and then delivered to the atomizing nozzle 910 through the water outlet pipe 912, so as to facilitate the flushing of the oven door; at the same time, the elastic telescopic pipe 913 can be stretched to facilitate the position adjustment of the cleaning machine shell 93, so as not to affect the liquid delivery; the oven door is brushed and washed through the cleaning brush head 97, and the oven door is flushed through the atomizing nozzle 910, so as to effectively improve the cleaning quality of the oven door.

[0029] The end face side of the cleaning seat 8 is fixedly provided with a dust cover, and the dust cover is located on the outer side of the third electric cylinder 91, which effectively reduces the accumulation of dust on the outer side of the third electric cylinder 91; a plurality of heat dissipation holes are formed in the end face of the cleaning shell 93, and the heat dissipation holes are in communication with the inside of the cleaning shell 93, which facilitates heat dissipation when the cleaning motor 94 is working; a cleaning through hole is formed in the central part of one end of the mounting partition plate 98, and the cleaning shaft 95 penetrates through the cleaning through hole and is connected with the brush head back frame 96, which facilitates transmission and makes the inside of the cleaning shell 93 communicate with the outside, thereby improving the heat dissipation rate of the cleaning motor 94.

[0030] The end face of the cleaning seat 8 and the outer end face of the water storage tank 915 are fixedly provided with a plurality of limiting racks 914, and the elastic expansion pipe 913 penetrates through the central part of the end face of the limiting rack 914; the limiting rack 914 can limit the elastic expansion pipe 913, so as to avoid the scattering of the elastic expansion pipe 913 during the expansion adjustment.

[0031] The supporting assembly 5 comprises stepped holes 51, and two stepped holes 51 are respectively formed in the central parts of the top end faces of the cleaning support table 1, and the end face of the stepped hole 51 is fixedly provided with an anti-falling support 52; the end face of the anti-falling support 52 is fixedly provided with a first electric cylinder 53, and the top end of the first electric cylinder 53 is fixedly provided with a first piston push rod 54; the top ends of the two first piston push rods 54 are fixedly connected with the bottom end face of the sewage storage rack 6, and the bottom end face of the two first electric cylinders 53 is connected with a beam frame 55; when the anti-falling support 52 is installed in the stepped hole 51, the cleaning support table 1 can support the anti-falling support 52; when the first electric cylinder 53 works, the first piston push rod 54 can push the sewage storage rack 6 to adjust the height, and the beam frame 55 can support the bottom of the first electric cylinder 53; the supporting assembly 5 can adaptively adjust the height of the sewage storage rack 6, thereby improving the convenience of use.

[0032] The sewage discharge assembly 10 comprises a sewage discharge groove 101, and the sewage discharge groove 101 is formed in the central part of the inner end face of the sewage storage rack 6; the inside of the sewage discharge groove 101 is filled with a mounting filter core 102; the bottom end face of the sewage storage rack 6 is fixedly provided with a sewage discharge valve 103, and the top end of the sewage discharge valve 103 is in communication with the inside of the sewage discharge groove 101; the bottom end of the sewage discharge valve 103 is fixedly provided with a sewage discharge pipe 104, and the bottom end of the sewage discharge pipe 104 penetrates through the cleaning support table 1; the sewage in the sewage storage rack 6 can be discharged; when the sewage is collected in the inside of the sewage storage rack 6, the sewage discharge valve 103 is opened, the sewage is filtered by the mounting filter core 102, and then the sewage is discharged from the inside of the sewage storage rack 6 through the sewage discharge pipe 104.

[0033] The sliding assembly 7 comprises support hangers 71 fixedly installed at one end of the bottom of the sewage storage rack 6 by welding, a guide rail bottom plate 72 fixedly installed at the bottom end of the support hanger 71, an electric guide rail 73 fixedly installed at the top of one end of the guide rail bottom plate 72, a guide rail sliding table 74 connected and installed at the top center of the electric guide rail 73, a second electric cylinder 75 fixedly installed at the top center of the guide rail sliding table 74, a second piston push rod 76 installed at the top center of the second electric cylinder 75, the top end of the second piston push rod 76 fixedly connected with the bottom end of the cleaning seat 8, a guide seat 77 fixedly installed on one side of the outer wall of the second electric cylinder 75, a guide protruding block 79 fixedly installed at one end center of the guide seat 77, and a guide sliding groove 78 formed at the center of one end of the outer wall of the sewage storage rack 6, one end of the guide protruding block 79 insertedly installed in the guide sliding groove 78. The support hanger 71 and the guide rail bottom plate 72 can stably support and connect the electric guide rail 73. When the electric guide rail 73 works, the guide rail sliding table 74 slides on the top of the electric guide rail 73, so that the contact position of the cleaning brush head 97 with the oven door can be adjusted. When the second electric cylinder 75 works, the contact height of the cleaning brush head 97 with the oven door can be adjusted by the second piston push rod 76, so that different positions of the oven door can be conveniently cleaned. During the movement of the guide rail sliding table 74, the guide protruding block 79 on one side of the guide seat 77 slides with the guide sliding groove 78, so that the movement stability of the guide rail sliding table 74 is effectively improved. The sliding assembly 7 can conveniently adjust the position and height of the cleaning seat 8, so that the cleaning use requirement of the oven door is met.

[0034] The cleaning support table 1 is provided with a push handle 2 fixedly installed at the bottom end face of both sides of the cleaning support table 1 by bolts, a moving rack 3 fixedly installed around the bottom end face of the cleaning support table 1 by welding, and the two side end faces of the cross beam frame 55 are fixedly connected with the moving rack 3. The bottom end face of the moving rack 3 is fixedly installed with four moving rollers 4, and the moving rollers 4 are universal self-locking wheel structures. The push handle 2 can be used to push the cleaning support table 1, so that the moving rack 3 at the bottom of the cleaning support table 1 drives the moving rollers 4 to roll. When the cleaning support table 1 is moved to a suitable position, the sewage storage rack 6 is located directly below the bottom of the oven door. The moving rollers 4 can be self-locked, so that the oven door can be conveniently cleaned.

[0035] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A cleaning device for the door of a diffusion furnace for solar cells, characterized in that, Include: The cleaning platform (1), the top end face of the cleaning platform (1) is provided with a supporting assembly (5) in the middle of both sides, and a sewage storage rack (6) is connected and installed above the top of the two supporting assemblies (5); The sewage storage rack (6) is provided with a sewage discharge assembly (10) in the middle of the end face, and a sliding assembly (7) is arranged on one side of the outer wall of the sewage storage rack (6), and a cleaning seat (8) is arranged above the top end of the sliding assembly (7); The cleaning seat (8), the end face of the cleaning seat (8) is provided with a cleaning assembly (9), and the cleaning assembly (9) is located above the sewage storage rack (6); The cleaning assembly (9) comprises a third electric cylinder (91), the third electric cylinder (91) is fixedly installed in the middle of the top end of the cleaning seat (8), and one end of the third electric cylinder (91) penetrates through one side end face of the cleaning seat (8); One end of the third electric cylinder (91) is provided with a third piston push rod (92), and one end of the third piston push rod (92) is fixedly installed with a cleaning machine shell (93).

2. The cleaning device of the furnace door of the diffusion furnace for solar cells according to claim 1, characterized in that, The inside of the cleaning machine shell (93) is fixedly installed with a cleaning motor (94) in the middle, and the cleaning motor (94) is provided with a cleaning shaft (95) in the middle of one end, and the cleaning machine shell (93) is fixedly installed with a mounting partition plate (98) on one end, and the cleaning shaft (95) is fixedly installed with a brush head back frame (96) through the mounting partition plate (98) on one end; The outer side of the brush head back frame (96) is fixedly installed with a cleaning brush head (97), the top end face of the mounting partition plate (98) is fixedly installed with a flow guide cover (99), the inside of the flow guide cover (99) is connected and installed with an atomizing nozzle (910), and the atomizing nozzle (910) is located on one side of the top of the cleaning brush head (97).

3. The cleaning device of the furnace door of the diffusion furnace for solar cells according to claim 1, characterized in that, The end face edge of the cleaning seat (8) is fixedly installed with a dust cover, and the dust cover is located on the outer side of the third electric cylinder (91); The end face of the cleaning machine shell (93) is provided with a plurality of heat dissipation holes, and the heat dissipation holes are in communication with the inside of the cleaning machine shell (93); One end of the mounting partition plate (98) is provided with a cleaning through hole in the middle, and the cleaning shaft (95) penetrates through the cleaning through hole and is connected with the brush head back frame (96).

4. The cleaning device of the furnace door of the diffusion furnace for solar cells according to claim 3, characterized in that, The top of the mounting partition plate (98) is fixedly installed with a spraying pump (911) on the other side in the middle, and the spraying pump (911) is provided with an elastic telescopic pipe (913) on one side in the middle, the top end of the spraying pump (911) is provided with a water outlet pipe (912) in the middle, and one end of the water outlet pipe (912) is fixedly connected with the atomizing nozzle (910) through the flow guide cover (99), the bottom of the cleaning seat (8) is fixedly installed with a water storage tank (915) on one side, and the bottom of the elastic telescopic pipe (913) is in communication with the inside bottom of the water storage tank (915).

5. The cleaning device of the furnace door of the diffusion furnace for solar cells according to claim 4, characterized in that, The end face of the cleaning seat (8) and the outer side end face of the water storage tank (915) are fixedly installed with a plurality of limiting frames (914), and the elastic telescopic pipe (913) penetrates through the end face center of the plurality of limiting frames (914).

6. The cleaning device of the furnace door of the diffusion furnace for solar cells according to claim 5, characterized in that, The supporting assembly (5) comprises stepped holes (51), two stepped holes (51) are respectively arranged at the central positions of the top end faces of the cleaning support table (1), the end faces of the stepped holes (51) are fixedly provided with anti-dropping supports (52), the end faces of the anti-dropping supports (52) are fixedly provided with first electric cylinders (53), the top end centers of the first electric cylinders (53) are fixedly provided with first piston push rods (54), the top ends of the two first piston push rods (54) are fixedly connected with the bottom end face of the sewage storage rack (6), and the bottom end faces of the two first electric cylinders (53) are fixedly provided with a cross beam frame (55).

7. The cleaning device of the furnace door of the diffusion furnace for solar cells according to claim 6, characterized in that, The pollution discharging assembly (10) comprises a pollution discharging groove (101), the pollution discharging groove (101) is arranged at the central position of the inner side end face of the sewage storage rack (6), and the pollution discharging groove (101) is filled with an installed filter core (102); the bottom end face of the sewage storage rack (6) is fixedly provided with a pollution discharging valve (103), the top end of the pollution discharging valve (103) is communicated with the inside of the pollution discharging groove (101), the bottom end center of the pollution discharging valve (103) is fixedly provided with a pollution discharging pipe (104), and the bottom end of the pollution discharging pipe (104) penetrates the cleaning support table (1).

8. The cleaning device of the furnace door of the diffusion furnace for solar cells according to claim 7, characterized in that, The sliding assembly (7) comprises support hanging seats (71), two support hanging seats (71) are fixedly arranged at the bottom end of the sewage storage rack (6) by welding, the bottom end of the support hanging seat (71) is fixedly provided with a guide rail bottom plate (72), one end top of the guide rail bottom plate (72) is fixedly provided with an electric guide rail (73), the top end center of the electric guide rail (73) is fixedly provided with a guide rail sliding table (74), the top end center of the guide rail sliding table (74) is fixedly provided with a second electric cylinder (75), the top end center of the second electric cylinder (75) is fixedly provided with a second piston push rod (76), the top end of the second piston push rod (76) is fixedly connected with the bottom end of the cleaning seat (8), one side of the outer wall of the second electric cylinder (75) is fixedly provided with a guide seat (77), one end center of the guide seat (77) is fixedly provided with a guide protruding block (79), and one end center of the outer wall of the sewage storage rack (6) is provided with a guide sliding groove (78), and one end of the guide protruding block (79) is insertedly arranged in the inside of the guide sliding groove (78).

9. The cleaning device of the furnace door of the diffusion furnace for solar cells according to claim 8, characterized in that, The bottom end face of the cleaning support table (1) is fixedly provided with a pushing handle (2) at the edge positions of the two sides by bolts, the bottom end face of the cleaning support table (1) is fixedly provided with a moving rack (3) around by welding, the two side end faces of the cross beam frame (55) are fixedly connected with the moving rack (3), and the bottom end face of the moving rack (3) is fixedly provided with four moving rollers (4), and the moving rollers (4) are universal self-locking wheels.

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