CN210710983U

CN210710983U - Concrete sewage filtering device

Info

Publication number: CN210710983U
Application number: CN201921041376.1U
Authority: CN
Inventors: 高先来; 陈福云; 周剑
Original assignee: Nanjing Binjiang Building Material Technology Group Co Ltd
Current assignee: Nanjing Binjiang Building Material Technology Group Co Ltd
Priority date: 2019-07-04
Filing date: 2019-07-04
Publication date: 2020-06-09
Anticipated expiration: 2029-07-04

Abstract

The utility model discloses a concrete sewage filtering device, including the water tank, set up the division board in the water tank, filter screen and scrubbing brush, the both sides wall of division board forms dirt collecting chamber and collecting chamber respectively with between the water tank inner wall, the roof that the water tank is located the collecting chamber is equipped with the water inlet, the water tank is located the collecting chamber bottom lateral wall and is equipped with the drain pipe, the filter screen can be dismantled and set up in the collecting chamber, the below that is located the filter screen in the collecting chamber is equipped with the floating separation subassembly that is used for keeping apart tiny mud, the lateral wall of division board is equipped with the drain outlet, the lateral wall of water tank is equipped with the drive assembly that the scrubbing brush will be piled up on the filter; this filter equipment can filter out the concrete in the sewage, prevents that concrete and debris from condensing, and then can carry out the orderly emission to sewage, has realized the cyclic utilization of sewage, has practiced thrift the water resource.

Description

Concrete sewage filtering device

Technical Field

The utility model relates to a filter equipment's technical field, in particular to concrete sewage filter equipment.

Background

Along with the rapid development of building trade, concrete in the building site is indispensable, and the concrete is loaded by the concrete mixer truck, and the concrete mixer truck is the special vehicle of transportation concrete, and the vehicle is when the transportation, and the concrete can solidify into the hard piece in the short time, has certain corrosive action to steel and paint, so after using the concrete basin at every turn, need the staff to wash the concrete of war adhesion on the basin inner wall, maintain the basin.

At present, workers generally clean storage tanks at construction sites, sewage after cleaning is directly discharged into a construction waste pool or a construction site, the sewage in the use site or the waste pool flows transversely, the construction environment is seriously polluted, a large amount of water resource waste is caused, if the sewage is not treated in time, concrete and sundries in the sewage are condensed, the later cleaning is difficult, and the green civilized construction of the construction site is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a concrete sewage filter equipment, its advantage is: this filter equipment can filter out the concrete in the sewage, prevents that concrete and debris from condensing, and then can carry out the orderly emission to sewage, has realized the cyclic utilization of sewage, has practiced thrift the water resource.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a concrete sewage filter equipment, includes the water tank, sets up division board, filter screen and the scrubbing brush in the water tank, the both sides wall of division board respectively with water tank inner wall between form album dirty room and the collecting chamber, the roof that the water tank is located the collecting chamber is equipped with the water inlet, the water tank is located collecting chamber bottom lateral wall and is equipped with the drain pipe, the filter screen can be dismantled and set up in the collecting chamber, the indoor below that is located the filter screen of collecting chamber is equipped with the floating separation subassembly that is used for keeping apart tiny mud, the lateral wall of division board is equipped with the drain, the lateral wall of water tank is equipped with the drive scrubbing brush and will piles up the mud on the filter screen and clean the.

According to the technical scheme, firstly, sewage is sent into the water collecting chamber through the water inlet, the sewage is primarily filtered by the filter screen, and larger solid particles can be isolated; secondly, the floating separation component is used for carrying out secondary filtration on fine particles in the sewage, so that the filtration effect is further enhanced; then the driving component is utilized to clean the particles accumulated on the filter screen into a sewage collection chamber through a sewage discharge outlet for collection; meanwhile, the filter screen is detachably arranged on the inner wall of the water collecting chamber, so that fine particles on the floating separation component can be conveniently cleaned; finally, the filtered water can be discharged through a drain pipe; the filtering device formed by the device can filter out concrete in sewage, prevent the concrete from condensing with sundries, further discharge the sewage in order, realize the cyclic utilization of the sewage and save water resources.

The utility model discloses further set up to: the floating separation assembly comprises a liquid separation floating plate and a screening net surrounding the outer wall of the liquid separation floating plate, the outer wall of the screening net is in contact with the inner wall of the water collecting chamber, and the diameter size of meshes of the screening net is smaller than that of the filter net.

Through the technical scheme, the liquid separation floating plate can ascend along with the rising of the water level, fine solid particles can be screened by the screening net, the diameter size of the filtering holes of the filtering net is smaller than that of the sieve holes, and the filtering effect is further improved; simultaneously, when the diapire of filter screen is contradicted to the roof of dividing the liquid kickboard, at this moment, the water discharge after accessible drain pipe filters water has improved the treatment effeciency to sewage.

The utility model discloses further set up to: the lateral wall of screening net is equipped with two relative sliding blocks, the inner wall of collecting chamber is equipped with the groove that slides that supplies sliding block to slide along its direction of height.

Through above-mentioned technical scheme, the cooperation of groove and the piece that slides plays limiting displacement to the removal of screening net, and then has improved the stability of dividing the liquid kickboard along with the water level oscilaltion in-process.

The utility model discloses further set up to: the lateral wall of water tank outwards extends and is equipped with the supporting shoe, drive assembly include two relative settings on the water tank roof montant, set up between two montant tops and with the gag lever post of catchment room width direction syntropy, slide the cover establish on the gag lever post and rather than the reverse actuating lever of axial, set up motor on the supporting shoe, with the rotatory piece of the actuating shaft connection of motor, wear to establish the guide bar of rotatory piece axle center department and set up the flange in guide bar one end, the lateral wall of rotatory piece is equipped with the through-hole that supplies the guide bar to pass, the diameter size of flange is greater than the diameter size of through-hole, the guide bar is kept away from the one end of flange and is rotated with the top of actuating lever and is connected, the diapire of actuating lever is equipped with the connecting plate and links.

Through the technical scheme, the motor is started, the rotating block rotates, the guide rod extends in the through hole of the rotating block, one end of the guide rod is hinged to the driving rod, and meanwhile, the limiting rod plays a limiting role in the movement of the driving rod and further drives the driving rod to slide along the length direction of the limiting rod, so that the decontamination brush is driven to slide along the width direction of the water collecting chamber, and solid particles on the filter screen can be finally cleaned into the water collecting chamber to be collected; the diameter size of the flange is larger than that of the through hole, so that the driving rod is prevented from sliding out of the through hole in the moving process, and the stability of the driving rod in the moving process is improved; this driving method, simple structure, convenient operation replaces the manpower to clean the filter screen, and labour saving and time saving has improved sewage treatment efficiency.

The utility model discloses further set up to: the top wall of the water tank extends upwards to be provided with a guide plate opposite to the vertical end of the supporting block, the side wall of the guide plate is provided with a sliding groove along the length direction of the guide plate, and one end of the decontamination brush, which is far away from the driving rod, is provided with a sliding block which slides in the sliding groove.

Through above-mentioned technical scheme, slider and spout play spacing effect to the removal of scrubbing brush, and then have improved the stability of scrubbing brush removal in-process.

The utility model discloses further set up to: the hinge of drain department is equipped with the blowdown door, the water tank is located the interior roof of the dirty room of collection and is equipped with the cylinder, the piston rod of cylinder articulates there is the connecting rod, the one end that the cylinder was kept away from to the connecting rod articulates there is the guide block, the lateral wall of blowdown door orientation collection dirty room is equipped with the guide way that supplies the guide block to slide along its width direction.

According to the technical scheme, when cleaning is needed, the piston rod of the air cylinder is started to retract, and as the two ends of the connecting rod are respectively hinged with the piston rod and the guide block of the air cylinder, the guide block slides in the guide groove, and the sewage discharge door is opened, the sewage removal brush can clean filtered solid particles into the sewage collection chamber; simultaneously, the arrangement of the sewage discharging door can prevent the water pump from pumping precipitated water into the water collecting chamber and flowing into the sewage collecting chamber through the sewage discharging port, so that the efficiency of sewage treatment is improved.

The utility model discloses further set up to: the roof of the dirty room of collection is equipped with the water pump, the drinking-water pipe of water pump extends to in the dirty room of collection, the drinking-water pipe of water pump extends to water inlet department, one side that the roof of the dirty room of collection is located the water pump is equipped with into dirty mouthful.

Through above-mentioned technical scheme, when handling sewage, will have the sewage of concrete through advancing dirty mouthful and send into the dirty indoor sediment of collection, after a period, the concrete sinks to the dirty indoor bottom of collection, starts the water pump this moment, will collect dirty indoor sewage extraction after deposiing to water inlet department, filters sewage, has further strengthened the filter effect to sewage.

The utility model discloses further set up to: the roof that the water tank is located dirty room of collection articulates and is equipped with sealing door, be equipped with the handle on the sealing door.

Through above-mentioned technical scheme, the pulling handle opens sealing door, and the staff can be regularly to deposiing the indoor debris discharge of collection dirt, has improved the treatment effect to sewage.

To sum up, the utility model discloses following beneficial effect has:

1. firstly, sewage is sent into a water collecting chamber through a water inlet, and primary filtration is carried out on the sewage by utilizing a filter screen, so that larger solid particles can be isolated; secondly, the floating separation component is used for carrying out secondary filtration on fine particles in the sewage, so that the filtration effect is further enhanced; then the driving component is utilized to clean the particles accumulated on the filter screen into a sewage collection chamber through a sewage discharge outlet for collection; meanwhile, the filter screen is detachably arranged on the inner wall of the water collecting chamber, so that fine particles on the floating separation component can be conveniently cleaned; finally, the filtered water can be discharged through a drain pipe; the filtering device formed by the device can filter out concrete in the sewage, prevent the concrete and sundries from being condensed, further orderly discharge the sewage, realize the recycling of the sewage and save water resources;

2. the screening net can screen fine solid particles, so that the filtering effect is further enhanced; meanwhile, when the top wall of the liquid separation floating plate butts against the bottom wall of the filter screen, the water filtered by the water can be discharged through the water discharge pipe, so that the sewage treatment efficiency is improved;

3. when sewage is treated, sewage with concrete is sent into the sewage collecting chamber through the sewage inlet to be precipitated, after a period of time, the concrete sinks into the bottom of the sewage collecting chamber, the water pump is started at the moment, the sewage after the precipitation in the sewage collecting chamber is extracted to the water inlet, the sewage is filtered, and the filtering effect on the sewage is further enhanced.

Drawings

Fig. 1 is a schematic view of the overall structure of the present embodiment.

Fig. 2 is a schematic sectional structure view in a whole plan view for embodying the water tank.

Fig. 3 is a schematic structural diagram for showing the positional relationship between the sieving net and the sliding block.

Fig. 4 is a schematic structural view for showing a positional relationship between the drain pipe and the tank in the present embodiment.

Fig. 5 is a partially enlarged schematic view for embodying fig. 4.

Reference numerals: 1. a water tank; 2. a partition plate; 3. a filter screen; 4. a decontamination brush; 5. a dirt collection chamber; 6. a water collection chamber; 7. a water inlet; 8. a drain pipe; 9. a floating separation assembly; 91. a liquid separating floating plate; 92. screening the net; 10. a sewage draining outlet; 11. a drive assembly; 111. a vertical rod; 112. a limiting rod; 113. a drive rod; 114. a motor; 115. rotating the block; 116. a guide bar; 117. a flange; 12. a sliding block; 13. a sliding groove; 14. a support block; 15. a through hole; 16. a guide plate; 17. a chute; 18. a slider; 19. a sewage draining door; 20. a cylinder; 21. a guide block; 22. a guide groove; 23. a water pump; 24. a water pumping pipe; 25. a water outlet pipe; 26. a sewage inlet; 27. a sealing door; 28. a handle; 29. a connecting rod; 30. a connecting plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

a concrete sewage filtering device, referring to fig. 1, comprises a rectangular water tank 1.

Referring to fig. 1 and 2, a division plate 2 is arranged in the water tank 1 in the same direction as the height direction of the water tank, the division plate 2 divides the water tank 1 into a sewage collection chamber 5 and a water collection chamber 6, a water inlet 7 with the same size as the water collection chamber 6 is arranged on the top wall of the water tank 1 positioned in the water collection chamber 6, a water discharge pipe 8 is arranged on the side wall of the bottom of the water collection chamber 6, a filter screen 3 is detachably arranged above the inside of the water collection chamber 6, a sewage inlet 26 is arranged on the top wall of the water tank 1 positioned in the sewage collection chamber 5, a water pump 23 is arranged on one side of the top wall of the sewage collection chamber 5; when sewage is treated, the sewage with concrete is sent into the sewage collection chamber 5 through the sewage inlet 26 for precipitation, after a period of time, the concrete is sunk into the bottom in the sewage collection chamber 5, at the moment, the water pump 23 is started, and the sewage after precipitation in the sewage collection chamber 5 is pumped to the water inlet 7; in the process of pumping by the water pump 23, part of impurities in the sewage collecting chamber 5 enter the water collecting chamber 6 along with water flow, some solid particles in the sewage can be filtered by the filter screen 3, and a relatively clean water source is formed in a space between the bottom wall of the filter screen 3 and the inner wall of the water collecting chamber 6 and is finally discharged through the drain pipe 8; the water tank 1 collects sewage in a centralized manner, and can avoid concrete and sundries from condensing for the independent treatment of the sewage with the concrete, so that the water recycling is realized, and the water resource is saved.

Referring to fig. 1, a sealing door 27 is hinged to the side wall of the sewage collecting chamber 5 of the water tank 1, and a handle 28 is arranged on the sealing door 27; the handle 28 is pulled to open the sealing door 27, so that the working personnel can discharge the sundries deposited in the sewage collecting chamber 5 regularly, and the sewage treatment effect is improved.

Referring to fig. 1 and 2, a sewage draining outlet 10 is arranged on the side wall of the top of a partition plate 2, the bottom wall of the sewage draining outlet 10 and a filter screen 3 are on the same horizontal straight line, a decontamination brush 4 with the same length and size is arranged on the filter screen 3, a supporting block 14 extends outwards from the side wall of a box body, a driving component 11 for driving the decontamination brush 4 to clean sundries accumulated on the filter screen 3 to the sewage draining outlet 10 is arranged on the supporting block 14, and a water collecting chamber 6 is arranged below the filter screen 3 and is provided with a floating separation component 9 for isolating fine sludge; after in sewage got into water-collecting chamber 6 after the sediment, filter screen 3 got into the primary filtration to sewage, and the separation subassembly 9 that floats shifts up the decline along with the height of water level, can avoid less solid particle to fall into water-collecting chamber 6 bottom through the filtration pore of filter screen 3, has realized the secondary filter to sewage, has strengthened the filter effect, finally can practice thrift the water resource to the water cyclic utilization who filters.

Referring to fig. 2, a sewage discharging door 19 with the same size is hinged to the side wall of the top of the water discharging opening, an air cylinder 20 is arranged on the inner top wall of the sewage collecting chamber 5, a piston rod of the air cylinder 20 is hinged to a connecting rod 29, a guide block 21 is hinged to one end, away from the air cylinder 20, of the connecting rod 29, the side wall, facing the sewage collecting chamber 5, of the sewage discharging door 19 is provided with a guide groove 22 along the width direction of the side wall, and the guide block 21 is connected in; when the filter screen 3 needs to be cleaned, the piston rod of the starting cylinder 20 retracts, and as one end of the connecting rod 29 is hinged with the piston rod of the cylinder 20 and the other end of the connecting rod 29 is hinged with the guide block 21, the guide block 21 slides in the guide groove 22, and the sewage discharge door 19 is opened, the sewage removal brush 4 can clean the filtered solid particles into the sewage collection chamber 5; meanwhile, due to the arrangement of the sewage discharging door 19, when the water pump 23 pumps precipitated water into the water collecting chamber 6, the water can be prevented from flowing into the sewage collecting chamber 5 through the sewage discharging port 10, and the efficiency of sewage treatment is improved.

Referring to fig. 2 and 3, the floating separation assembly 9 comprises a liquid separation floating plate 91 and a screening net 92 surrounding the peripheral side wall of the liquid separation floating plate 91, the outer wall of the screening net 92 is in contact with the inner wall of the water collection chamber 6, the diameter size of the sieve pores of the screening net 92 is smaller than that of the filter screen 3, and the liquid separation floating plate 91 is made of EVA material; the EVA material has good buoyancy and can rise along with the rise of the water level, fine solid particles can be screened by the screening net 92, the diameter size of the filtering holes of the filtering net 3 is smaller than that of the sieve holes, and the filtering effect is further improved; simultaneously, when the diapire of filter screen 3 is contradicted to the roof of dividing liquid kickboard 91, at this moment, accessible drain pipe 8 is discharged with the log raft after the water filtration, can set up automatically controlled valve (not shown in the figure) on the drain pipe 8, and then the water discharge in the steerable collecting chamber 6, has realized automated work, has improved the treatment effeciency to sewage.

Referring to fig. 3, the inner wall of the water collecting chamber 6 is provided with two opposite sliding grooves 13 along the height direction thereof, and the side wall of the sieving net 92 is provided with a sliding block 12 sliding in the sliding groove 17; the cooperation of sliding groove 13 and sliding block 12 plays limiting displacement to screening net 92, and then has improved the stability of dividing liquid kickboard 91 along with the in-process of water level oscilaltion.

Referring to fig. 4 and 5, the driving assembly 11 includes two vertical rods 111 oppositely disposed on the top wall of the water tank 1, a limit rod 112 disposed between the top ends of the two vertical rods 111 and having the same direction as the length direction of the supporting block 14, a driving rod 113 slidably disposed on the limit rod 112 and having an opposite direction to the axial direction thereof, a motor 114 disposed on the supporting block 14, a rotating block 115 connected to the driving shaft of the motor 114, a guide rod 116 disposed at the axial center of the rotating block 115, and a flange 117 disposed at one end of the guide rod 116, a through hole 15 for the guide rod 116 to pass through is disposed on the side wall of the rotating block 115, the diameter of the flange 117 is greater than that of the through hole 15, one end of the guide rod 116, which is far from the flange 117, is rotatably connected to the top end of the driving rod 113, a connecting plate 30 disposed on the bottom wall of the driving rod 113 and connected to the top wall of the scrubbing brush, the top wall of the horizontal end of the connecting plate 30 is fixed on the bottom wall of the driving rod 113; the motor 114 is started, the rotating block 115 rotates, the guide rod 116 extends and retracts in the through hole 15 of the rotating block 115, one end of the guide rod 116 is hinged to the driving rod 113, meanwhile, the limiting rod 112 limits the movement of the driving rod 113, and the driving rod 113 slides along the length direction of the limiting rod 112, so that the decontamination brush 4 is driven to slide along the width direction of the water collection chamber 6, and finally, solid particles on the filter screen 3 can be cleaned into the dirt collection chamber 5 to be collected; the diameter of the flange 117 is larger than that of the through hole 15, so that the driving rod 113 is prevented from sliding out of the through hole 15 in the moving process, and the stability of the driving rod 113 in the moving process is improved; this driving method, simple structure, convenient operation replaces the manpower to clean filter screen 3, and labour saving and time saving has improved sewage treatment efficiency.

Referring to fig. 4, a guide plate 16 extends upwards from the top wall of the water tank 1 opposite to the supporting block 14, the length dimension of the guide plate 16 is consistent with the width dimension of the water collecting chamber 6, a sliding groove 17 is formed in the side wall of the guide plate 16 facing the supporting block 14 along the length direction of the side wall, an L-shaped sliding block 18 is arranged at one end of the decontamination brush 4 far away from the connecting plate 30, and the horizontal end of the sliding block 18 slides in the sliding groove 17; the slider 18 and the chute 17 limit the movement of the scrubbing brush 4, and further improve the stability of the scrubbing brush 4 in the moving process.

The working process is as follows: firstly, sewage is sent into the sewage collection chamber 5 through the sewage inlet 26 for precipitation, after a period of time, the precipitated water is pumped into the water collection chamber 6 by the water pump 23, the sewage is filtered for the second time through the filter screen 3 and the screen mesh in sequence, and the filtered water can be discharged through the drain pipe 8; then, the motor 114 is started to drive the rotating block 115 to rotate, so that the driving rod 113 moves along the length direction of the limiting rod 112, and the dirt removing brush 4 cleans solid impurities on the filter screen 3 to the sewage outlet 10; finally, the cylinder 20 is started, the sewage discharging door 19 is opened, and then the dirt removing brush 4 can clean the sundries into the dirt collecting chamber 5.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a concrete sewage filter equipment which characterized in that: comprises a water tank (1), a partition plate (2) arranged in the water tank (1), a filter screen (3) and a decontamination brush (4), a sewage collecting chamber (5) and a water collecting chamber (6) are respectively formed between the two side walls of the partition plate (2) and the inner wall of the water tank (1), a water inlet (7) is arranged on the top wall of the water collecting chamber (6) of the water tank (1), a drain pipe (8) is arranged on the side wall of the water tank (1) at the bottom of the water collecting chamber (6), the filter screen (3) is detachably arranged in the water collecting chamber (6), a floating separation component (9) for isolating fine sludge is arranged below the filter screen (3) in the water collecting chamber (6), the lateral wall of division board (2) is equipped with drain (10), the lateral wall of water tank (1) is equipped with drive scrubbing brush (4) and will piles up mud on filter screen (3) and clean drive assembly (11) to drain (10) department.

2. The concrete sewage filtering device according to claim 1, wherein: the floating separation component (9) comprises a liquid separation floating plate (91) and a screening net (92) which is surrounded on the outer wall of the liquid separation floating plate (91), the outer wall of the screening net (92) is in contact with the inner wall of the water collecting chamber (6), and the diameter size of the meshes of the screening net (92) is smaller than that of the filter screen (3).

3. The concrete sewage filtering device according to claim 2, wherein: the lateral wall of screening net (92) is equipped with two relative sliding block (12), the inner wall of water-collecting chamber (6) is equipped with along its direction of height and supplies sliding groove (13) that sliding block (12) slided.

4. The concrete sewage filtering device according to claim 1, wherein: the lateral wall of water tank (1) outwards extends and is equipped with supporting shoe (14), drive assembly (11) include two relative montant (111) that set up on water tank (1) roof, set up between two montant (111) tops and with catchment room (6) width direction syntropy gag lever post (112), slip the cover establish on gag lever post (112) and with its axial reversal actuating lever (113), set up motor (114) on supporting shoe (14), with the rotatory piece (115) of the actuating shaft connection of motor (114), wear to establish guide bar (116) and the flange (117) of setting in guide bar (116) one end in rotatory piece (115) axle center department, the lateral wall of rotatory piece (115) is equipped with through-hole (15) that supply guide bar (116) to pass, the diameter size of flange (117) is greater than the diameter size of through-hole (15), the guide bar (116) keep away from the one end of flange (117) and be connected with the top of actuating lever (113) rotation, the bottom wall of the driving rod (113) is provided with a connecting plate (30) connected with the top wall of the decontamination brush (4).

5. The concrete sewage filtering device according to claim 4, wherein: the top wall of the water tank (1) extends upwards to form a guide plate (16) opposite to the vertical end of the supporting block (14), the side wall of the guide plate (16) is provided with a sliding groove (17) along the length direction of the guide plate, and one end, far away from the driving rod (113), of the decontamination brush (4) is provided with a sliding block (18) sliding in the sliding groove (17).

6. The concrete sewage filtering device according to claim 1, wherein: drain (10) department is articulated to be equipped with blowdown door (19), the inner ceiling that water tank (1) is located collection dirt room (5) is equipped with cylinder (20), the piston rod of cylinder (20) articulates there is connecting rod (29), the one end that cylinder (20) were kept away from in connecting rod (29) articulates there is guide block (21), the lateral wall of blowdown door (19) towards collection dirt room (5) is equipped with guide way (22) that supply guide block (21) to slide along its width direction.

7. The concrete sewage filtering device according to claim 1, wherein: the roof of the dirty room of collection (5) is equipped with water pump (23), the drinking-water pipe (24) of water pump (23) extend to in the dirty room of collection (5), the drinking-water pipe (24) of water pump (23) extend to water inlet (7) department, one side that the roof of the dirty room of collection (5) is located water pump (23) is equipped with into dirty mouthful (26).

8. The concrete sewage filtering device according to claim 1, wherein: the water tank (1) is hinged to the top wall of the sewage collecting chamber (5) and is provided with a sealing door (27), and a handle (28) is arranged on the sealing door (27).