Safe anti-precipitation storage tank for waterproof anti-solvent SBR (Styrene Butadiene Rubber) latex

Abstract

The utility model discloses a safe anti-precipitation storage tank for waterproof anti-solvent SBR (styrene butadiene rubber) latex, which belongs to the field of storage tanks and comprises a storage tank body, the upper end of the storage tank body is in threaded connection with a sealing cover, and the upper end of the sealing cover is connected with a pressure relief recovery component. The pressure gauge monitors the pressure in the pressure relief pipe, when the pressure is too high and needs to be relieved, the pressure relief valve and the first valve are opened, the conveying pump pumps cooling liquid to the first hose through the input pipe and enters the condensing coil, the condensing pipe is cooled, and therefore steam entrained with waterproof and anti-solvent SBR latex and brought out during pressure relief can be condensed and then conveyed to the second hose through the conveying pump. And under the action of gravity, the waterproof anti-solvent SBR latex falls back into the storage tank body, the waterproof anti-solvent SBR latex is recycled, resource waste is prevented, part of harmful substances in gas are filtered through an activated carbon net, environment pollution is prevented, and the safety performance of the storage tank is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of storage tank, especially to a safe anti -precipitation storage tank of waterproof solvent resistant SBR latex. BACKGROUND

[0002] The waterproof solvent resistant SBR latex is a water-based emulsion based on styrene-butadiene rubber (SBR), and the safe anti-precipitation storage tank of waterproof solvent resistant SBR latex is a storage container that can ensure stable performance of SBR latex and prolong service life through reasonable storage and management;

[0003] In the Chinese patent with application number CN202021251166.8, a latex storage tank for brown pad production is disclosed. The latex is added into the tank body from the feed inlet, the motor drives the stirring shaft to rotate, the stirring shaft drives the stirring plate to rotate, the latex in the tank body is stirred to prevent coagulation, the heat conducting liquid enters the jacket through the heat conducting liquid inlet pipe, flows out of the jacket through the heat conducting liquid outlet pipe to complete circulation in the jacket, and the tank body is heat preserved, so that the latex in the tank body is in a relatively constant temperature environment, the latex properties remain stable, and the latex storage is beneficial. After the heat conducting liquid flows out of the heat conducting liquid outlet pipe, it enters the heating chamber, the electric heating rod in the heating chamber heats the heat conducting liquid to a set temperature, and then the heat conducting liquid enters the heat conducting liquid inlet pipe through the flow guide pipe under the action of the lifting pump for the next cycle. When the latex is needed, the discharge pipe is opened to discharge the latex. Through continuous stirring of the latex and maintaining the latex at a constant temperature, the discharged latex always has the best physical and chemical properties, which is convenient for subsequent brown pad production and processing, effectively solves the problem that the latex for brown pad production is not stored perfectly when it is prepared, the latex properties change, and the brown pad processing quality is poor.

[0004] However, when storing waterproof solvent resistant SBR latex, the pressure in the storage tank may increase during stirring of the waterproof solvent resistant SBR latex. The storage tank in the above-mentioned comparative patent is difficult to release pressure in time, and the general pressure relief pipe may cause the waterproof solvent resistant SBR latex to splash out during pressure relief, which is difficult to recover, and is easy to cause resource waste. Therefore, we propose a safe anti-precipitation storage tank of waterproof solvent resistant SBR latex. UTILITY MODEL CONTENTS

[0005] In order to overcome the prior art, the utility model discloses a kind of safe anti-precipitation storage tanks of waterproof solvent-resistant SBR latex, by being provided with pressure relief recovery assembly, pressure gauge monitors the pressure inside pressure relief pipe, when pressure is too high and needs to be relieved, open pressure relief valve, open valve one, and cooling liquid is extracted to hose one by conveying pump through input pipe, enters condensing coil pipe, cooling coil pipe is cooled, so that the vapor mixed with waterproof solvent-resistant SBR latex when relieving can be condensed, then let waterproof solvent-resistant SBR latex fall into storage tank body under the action of gravity, waterproof solvent-resistant SBR latex is recycled, prevent causing resource waste, residual gas is then raised to processing box, pass through porous airflow distribution plate and guide air hole and let gas evenly pass through activated carbon net, utilize activated carbon net and filter part harmful in gas, finally exhaust from exhaust pipe, prevent polluting environment, improve the safety performance of storage tank.

[0006] The above technical purpose of the utility model is realized by the following technical scheme:

[0007] A kind of safe anti-precipitation storage tanks of waterproof solvent-resistant SBR latex, including storage tank body, the upper end of the storage tank body is threadedly connected with sealing cover, the upper end of the sealing cover is connected with pressure relief recovery assembly, the outside of the sealing cover is connected with anti-precipitation assembly, the inside of the storage tank body is connected with anti-static assembly;

[0008] The pressure relief recovery assembly includes pressure relief pipe, the upper end of the sealing cover is fixedly connected with the pressure relief pipe, the outside of the pressure relief pipe is fixedly connected with pressure relief valve, the outside of the pressure relief pipe is fixedly connected with pressure gauge, the upper end of the pressure relief pipe is connected with condensing pipe, the inside of the condensing pipe is fixedly connected with condensing coil pipe, the upper end of the sealing cover movably places cooling liquid tank, the upper end of the sealing cover movably places recovery tank, the upper end of the cooling liquid tank is fixedly connected with conveying pump, the input end of the conveying pump is fixedly connected with input pipe, the input pipe extends to the inside of the cooling liquid tank and is fixedly connected with the cooling liquid tank, the output end of the conveying pump is threadedly connected with hose one, one end of the hose one is fixedly connected with condensing coil pipe, the other end of the condensing coil pipe is fixedly connected with hose two, the tail end of the hose two is threadedly connected with recovery tank, the outside of the hose one is fixedly connected with valve one, the outside of the hose two is fixedly connected with valve two, the upper end of the condensing pipe is fixedly connected with processing box, the inside of the processing box is fixedly connected with porous airflow distribution plate, a plurality of uniformly arranged guide air holes are formed in the outside of the porous airflow distribution plate, the inner wall of the processing box is fixedly connected with activated carbon net, the upper end of the processing box is fixedly connected with exhaust pipe.

[0009] By setting the pressure relief recovery assembly, the pressure gauge monitors the pressure inside the pressure relief pipe, when the pressure is too high and needs to be relieved, the pressure relief valve is opened, valve one is opened, the delivery pump extracts the coolant through the input pipe to the hose one, enters the condensing coil, cools the condensing pipe, so that the steam containing the waterproof and solvent resistant SBR latex brought out during pressure relief can be condensed again, and the waterproof and solvent resistant SBR latex falls back to the storage tank under the action of gravity, the waterproof and solvent resistant SBR latex is recovered, the resource waste is prevented, the residual gas rises to the treatment box, the gas is uniformly passed through the activated carbon net through the porous gas flow distribution plate and the gas guide hole, the activated carbon net is used to filter part of harmful substances in the gas, and finally the gas is discharged from the exhaust pipe, so that the environment is prevented from being polluted, and the safety performance of the storage tank is improved.

[0010] Further, the outer part of the condensing pipe and the pressure relief pipe is fixedly connected with a flange plate, the two flange plates are detachably connected through locking bolts, and the locking bolts are threadedly connected with the flange plates.

[0011] By setting the flange plate and the locking bolt, the condensing pipe and the pressure relief pipe are convenient to mount and dismount.

[0012] Further, the upper end of the coolant tank is fixedly communicated with a liquid injection pipe, and the upper end of the recovery tank is fixedly communicated with a liquid discharge pipe.

[0013] Further, the anti-static component comprises a plurality of annular conductive copper belts, the annular conductive copper belts are fixedly embedded in the inner wall of the storage tank body, and the outer part of the annular conductive copper belt is fixedly connected with a strip-shaped conductive copper belt.

[0014] Further, the lower end of the storage tank body is fixedly connected with a conductive copper ring, the lower end of the conductive copper ring is fixedly connected with a grounding column, the lowermost strip-shaped conductive copper belt penetrates through the storage tank body and is fixedly connected with the storage tank body, and the lowermost strip-shaped conductive copper belt is fixedly connected with the conductive copper ring.

[0015] By setting the anti-static component, the conductive copper belt cooperates with the conductive copper ring and the grounding column, so that static electricity generated during stirring can be conducted to the ground, thereby eliminating the risk of static electricity accumulation to a certain extent and improving the safety of the device.

[0016] Further, the anti-settling component comprises a driving motor, the driving motor is fixedly connected to the upper end of the sealing cover, the output end of the driving motor is fixedly connected with a stirring shaft, the stirring shaft penetrates through the sealing cover and is rotatably connected with the sealing cover, and the outer part of the stirring shaft is fixedly connected with stirring blades.

[0017] Further, the lower end of the storage tank body is fixedly communicated with a discharge pipe, and the outer part of the discharge pipe is fixedly connected with a discharge valve.

[0018] Further, the lower end of the storage tank body is fixedly connected with a plurality of supporting legs, which are uniformly arranged.

[0019] In summary, the utility model has the following beneficial effects:

[0020] 1. By setting the pressure relief recovery assembly, the pressure gauge monitors the pressure inside the pressure relief pipe, when the pressure is too high and needs to be relieved, open the pressure relief valve, open the valve one, the delivery pump extracts the coolant through the input pipe to the hose one, enters the condensing coil, cools the condensing pipe, so that the steam mixed with waterproof and solvent resistant SBR latex during pressure relief can be condensed again under the action of gravity, and the waterproof and solvent resistant SBR latex falls into the storage tank, the waterproof and solvent resistant SBR latex is recycled, the resource waste is prevented, the residual gas rises to the treatment box, passes through the porous air flow distribution plate and the air guide hole, and the gas is uniformly passed through the activated carbon net, the activated carbon net is used to filter part of harmful substances in the gas, finally, the gas is discharged from the exhaust pipe, the environment is prevented from being polluted, and the safety performance of the storage tank is improved.

[0021] 2. By setting the anti-static component, the conductive copper belt cooperates with the conductive copper ring and the grounding column, static electricity generated during stirring can be introduced into the ground, so that the risk of static electricity accumulation can be eliminated to a certain extent, and the safety of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the overall structure schematic diagram in the embodiment;

[0023] Figure 2 It is the structure schematic diagram of the pressure relief recovery assembly in the embodiment;

[0024] Figure 3 It is the structure schematic diagram of the section in the embodiment;

[0025] Figure 4 It is the structure schematic diagram of the section in the embodiment; Figure 3 It is the structure schematic diagram of the section in the embodiment;

[0026] Figure 5 It is the structure schematic diagram of the anti-static component in the embodiment.

[0027] In the figure, 1, storage tank body; 2, sealing cover; 3, pressure relief recovery assembly; 301, pressure relief pipe; 302, pressure relief valve; 303, pressure gauge; 304, condensing pipe; 305, condensing coil; 306, cooling liquid tank; 307, recovery tank; 308, delivery pump; 309, input pipe; 310, hose one; 311, hose two; 312, valve one; 313, valve two; 314, processing tank; 315, porous air flow distribution plate; 316, air guide hole; 317, activated carbon screen; 318, exhaust pipe; 319, flange plate; 320, locking bolt; 321, liquid injection pipe; 322, liquid discharge pipe; 4, anti-settling assembly; 401, driving motor; 402, stirring shaft; 403, stirring blade; 404, discharge pipe; 405, discharge valve; 5, anti-static assembly; 501, annular conductive copper strip; 502, strip-shaped conductive copper strip; 503, conductive copper ring; 504, grounding column; 6, supporting leg. DETAILED DESCRIPTION

[0028] The utility model will be described in further detail below in combination with the drawings.

[0029] Identical parts are denoted by identical reference numerals. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "bottom surface" and "top surface", "inner" and "outer" refer to the directions towards or away from the geometric center of a particular part.

[0030] Referring to Figures 1-4 As shown in the figure, it is a safe anti-settling storage tank for waterproof solvent-resistant SBR latex in a preferred embodiment of the utility model, comprising a storage tank body 1, a sealing cover 2 is threadedly connected to the upper end of the storage tank body 1, a pressure relief recovery assembly 3 is connected to the upper end of the sealing cover 2, an anti-settling assembly 4 is connected to the outside of the sealing cover 2, and an anti-static assembly 5 is connected to the inside of the storage tank body 1.

[0031] The pressure relief and recovery assembly 3 comprises a pressure relief pipe 301 fixedly communicated with the upper end of the sealing cover 2, a pressure relief valve 302 fixedly connected outside the pressure relief pipe 301, a pressure gauge 303 fixedly connected outside the pressure relief pipe 301, a condensing pipe 304 connected with the upper end of the pressure relief pipe 301, a condensing coil 305 fixedly connected inside the condensing pipe 304, a cooling liquid tank 306 movably placed on the upper end of the sealing cover 2, a recovery tank 307 movably placed on the upper end of the sealing cover 2, a delivery pump 308 fixedly connected with the upper end of the cooling liquid tank 306, an input pipe 309 fixedly communicated with the input end of the delivery pump 308, the input pipe 309 extending into the inside of the cooling liquid tank 306 and fixedly connected with the cooling liquid tank 306, a soft pipe I 310 threadedly connected with the output end of the delivery pump 308, the soft pipe I 310 fixedly communicated with one end of the condensing coil 305, a soft pipe II 311 fixedly communicated with the other end of the condensing coil 305, the soft pipe II 311 threadedly connected with the recovery tank 307, a valve I 312 fixedly connected outside the soft pipe I 310, a valve II 313 fixedly connected outside the soft pipe II 311, a treatment tank 314 fixedly communicated with the upper end of the condensing pipe 304, a porous air flow distribution plate 315 fixedly connected inside the treatment tank 314, a plurality of air guide holes 316 evenly arranged outside the porous air flow distribution plate 315, an activated carbon net 317 fixedly connected with the inner wall of the treatment tank 314, and an exhaust pipe 318 fixedly communicated with the upper end of the treatment tank 314.

[0032] By arranging the pressure relief and recovery assembly 3, the pressure gauge 303 monitors the pressure inside the pressure relief pipe 301, when the pressure is too high and needs to be relieved, the pressure relief valve 302 is opened, the valve I 312 is opened, and the delivery pump 308 draws the cooling liquid through the input pipe 309 to the soft pipe I 310, enters the condensing coil 305, and cools the condensing pipe 304, so that the steam containing the waterproof and solvent-resistant SBR latex brought out during pressure relief can be condensed, and then the waterproof and solvent-resistant SBR latex falls back into the storage tank 1 under the action of gravity, the waterproof and solvent-resistant SBR latex is recovered, resource waste is prevented, residual gas rises into the treatment tank 314, passes through the porous air flow distribution plate 315 and the air guide holes 316 to make the gas uniformly pass through the activated carbon net 317, the activated carbon net 317 is used to filter part of harmful substances in the gas, and finally the gas is discharged from the exhaust pipe 318, so as to prevent environmental pollution and improve the safety performance of the storage tank.

[0033] Referring to Figures 1-4 As shown in the figure, flanges 319 are fixedly connected outside the condensing pipe 304 and the pressure relief pipe 301, and the two flanges 319 are detachably connected through locking bolts 320, and the locking bolts 320 are threadedly connected with the flanges 319.

[0034] By arranging the flanges 319 and the locking bolts 320, the installation and disassembly between the condensing pipe 304 and the pressure relief pipe 301 are facilitated.

[0035] Referring to Figures 1-4 As shown in the drawings, the upper end of the cooling liquid tank 306 is fixedly connected with a liquid injection pipe 321, and the upper end of the recovery tank 307 is fixedly connected with a liquid discharge pipe 322.

[0036] The liquid injection pipe 321 facilitates the addition of cooling liquid to the cooling liquid tank 306, and the liquid discharge pipe 322 facilitates the pouring out of the cooling waste liquid inside the recovery tank 307 after the recovery tank 307 is removed and inverted.

[0037] Referring to Figure 1 , Figure 3 and Figure 5 As shown in the drawings, the anti-static assembly 5 includes a plurality of annular conductive copper strips 501 fixedly embedded in the inner wall of the storage tank body 1, and the outer portion of the annular conductive copper strip 501 is fixedly connected with a strip-shaped conductive copper strip 502.

[0038] Referring to Figure 1 , Figure 3 and Figure 5 As shown in the drawings, the lower end of the storage tank body 1 is fixedly connected with a conductive copper ring 503, the lower end of the conductive copper ring 503 is fixedly connected with a grounding column 504, the lowermost strip-shaped conductive copper strip 502 penetrates through the storage tank body 1 and is fixedly connected with the storage tank body 1, and the lowermost strip-shaped conductive copper strip 502 is fixedly connected with the conductive copper ring 503.

[0039] By setting the anti-static assembly 5, the conductive copper strip cooperates with the conductive copper ring 503 and the grounding column 504 to guide the static electricity generated during stirring to the ground, thereby eliminating the risk of static electricity accumulation to a certain extent and improving the safety of the device.

[0040] Referring to Figure 1 and Figure 3 As shown in the drawings, the anti-settling assembly 4 includes a driving motor 401 fixedly connected to the upper end of the sealing cover 2, the output end of the driving motor 401 is fixedly connected with a stirring shaft 402, the stirring shaft 402 penetrates through the sealing cover 2 and is rotatably connected with the sealing cover 2, and the outer portion of the stirring shaft 402 is fixedly connected with a stirring blade 403.

[0041] By setting the anti-settling assembly 4, the driving motor 401 drives the stirring shaft 402 and the stirring blade 403 to rotate, which stirs the waterproof and solvent-resistant SBR latex inside the storage tank body 1 to prevent the waterproof and solvent-resistant SBR latex from precipitating in large quantities.

[0042] Referring to Figure 1 and Figure 3 As shown in the drawings, the lower end of the storage tank body 1 is fixedly connected with a discharge pipe 404, and the outer portion of the discharge pipe 404 is fixedly connected with a discharge valve 405.

[0043] Open the discharge valve 405, the waterproof anti-solvent SBR latex from the discharge pipe 404, convenient waterproof anti-solvent SBR latex at any time.

[0044] Referring to Figure 1 And Figure 3 Figure 1 Figure 3 As shown in the storage tank body 1, the lower end of the fixed connection with a plurality of support legs 6, support legs 6 are evenly arranged.

[0045] Specific implementation process: pressure gauge 303 monitoring the pressure inside the pressure relief pipe 301, when the pressure is too high need to relieve, open the pressure relief valve 302, open the valve 312, 308 pump delivery through the input pipe 309 to extract the hose 310, into the cooling coil 305, cooling condenser tube 304, so that the pressure relief when the mixed with waterproof anti-solvent SBR latex vapor after condensation, once again under the action of gravity to let waterproof anti-solvent SBR latex back to the storage tank 1, waterproof anti-solvent SBR latex recycling, to prevent waste resources, open the valve 313, the cooling liquid can be discharged from the hose 311 to the recovery tank 307, the residual gas is then rising to the processing tank 314, through the porous gas flow distribution plate 315 and the air guide hole 316 let gas evenly through the activated carbon net 317, using activated carbon net 317 of the gas in the part of the harmful material for filtering, finally from the exhaust pipe 318, to prevent pollution of the environment;

[0046] The liquid injection pipe 321 is convenient to add cooling liquid to the cooling liquid tank 306, the liquid discharge pipe 322 is convenient to separate the recovery tank 307 and the hose 311, and to remove the cooling waste liquid in the recovery tank 307 after being inverted;

[0047] The conductive copper belt cooperates with the conductive copper ring 503 and the grounding column 504, which can guide the static electricity generated during stirring to the ground, so as to eliminate the risk of static electricity accumulation to a certain extent and improve the safety of the device.

[0048] The driving motor 401 drives the stirring shaft 402 and the stirring blade 403 to rotate, so as to stir the waterproof anti-solvent SBR latex in the storage tank body 1 and prevent the waterproof anti-solvent SBR latex from being deposited in large quantities.

[0049] Open the discharge valve 405, the waterproof anti-solvent SBR latex from the discharge pipe 404, convenient waterproof anti-solvent SBR latex at any time.

[0050] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A safe, anti-sedimentation storage tank for waterproof, solvent-resistant SBR latex, characterized in that: Includes a storage tank (1), the upper end of which is threadedly connected to a sealing cap (2), the upper end of which is connected to a pressure relief and recovery assembly (3), the outside of which is connected to an anti-sedimentation assembly (4), and the inside of which is connected to an anti-static assembly (5). The pressure relief and recovery assembly (3) includes a pressure relief pipe (301), which is fixedly connected to the upper end of the sealing cover (2). A pressure relief valve (302) is fixedly connected to the outside of the pressure relief pipe (301), and a pressure gauge (303) is fixedly connected to the outside of the pressure relief pipe (301). A condenser pipe (304) is connected to the upper end of the pressure relief pipe (301), and a condenser coil (305) is fixedly connected inside the condenser pipe (304). A coolant tank (306) is movably placed at the upper end of the sealing cover (2), and a recovery tank (307) is movably placed at the upper end of the sealing cover (2). A transfer pump (308) is fixedly connected to the upper end of the coolant tank (306). An input pipe (309) is fixedly connected to the input end of the transfer pump (308). The input pipe (309) extends into the interior of the coolant tank (306) and is fixedly connected to the coolant tank (306). The transfer pump ( The output end of 308 is threadedly connected to a first hose (310), which is fixedly connected to one end of the condenser coil (305). The other end of the condenser coil (305) is fixedly connected to a second hose (311). The end of the second hose (311) is threadedly connected to the recovery box (307). The outside of the first hose (310) is fixedly connected to a first valve (312), and the outside of the second hose (311) is fixedly connected to a second valve (313). The upper end of the condenser tube (304) is fixedly connected to a processing box (314). The inside of the processing box (314) is fixedly connected to a porous airflow distribution plate (315). The outside of the porous airflow distribution plate (315) is provided with multiple evenly arranged air guide holes (316). The inner wall of the processing box (314) is fixedly connected to an activated carbon mesh (317), and the upper end of the processing box (314) is fixedly connected to an exhaust pipe (318).

2. The waterproof and solvent-resistant SBR latex safety anti-sedimentation storage tank according to claim 1, characterized in that: The condenser pipe (304) and the pressure relief pipe (301) are both fixedly connected to flanges (319). The two flanges (319) are detachably connected by locking bolts (320), and the locking bolts (320) are threaded to the flanges (319).

3. The waterproof and solvent-resistant SBR latex safe anti-sedimentation storage tank according to claim 1, characterized in that: The upper end of the coolant tank (306) is fixedly connected to an injection pipe (321), and the upper end of the recovery tank (307) is fixedly connected to a drain pipe (322).

4. The waterproof and solvent-resistant SBR latex safe anti-sedimentation storage tank according to claim 1, characterized in that: The antistatic component (5) includes multiple annular conductive copper strips (501), which are fixedly embedded in the inner wall of the storage tank (1), and strip conductive copper strips (502) are fixedly connected to the outside of the annular conductive copper strips (501).

5. A waterproof and solvent-resistant SBR latex safety anti-sedimentation storage tank according to claim 4, characterized in that: A conductive copper ring (503) is fixedly connected to the lower end of the storage tank (1), and a grounding post (504) is fixedly connected to the lower end of the conductive copper ring (503). The bottommost strip of conductive copper (502) passes through the storage tank (1) and is fixedly connected to the storage tank (1). The bottommost strip of conductive copper (502) is fixedly connected to the conductive copper ring (503).

6. A waterproof and solvent-resistant SBR latex safety anti-sedimentation storage tank according to claim 1, characterized in that: The anti-settling component (4) includes a drive motor (401), which is fixedly connected to the upper end of the sealing cover (2). The output end of the drive motor (401) is fixedly connected to a stirring shaft (402), which passes through the sealing cover (2) and is rotatably connected to the sealing cover (2). A stirring blade (403) is fixedly connected to the outside of the stirring shaft (402).

7. A waterproof and solvent-resistant SBR latex safety anti-sedimentation storage tank according to claim 6, characterized in that: The lower end of the storage tank (1) is fixedly connected to a discharge pipe (404), and a discharge valve (405) is fixedly connected to the outside of the discharge pipe (404).

8. A waterproof and solvent-resistant SBR latex safety anti-sedimentation storage tank according to claim 1, characterized in that: The lower end of the storage tank (1) is fixedly connected to a plurality of support legs (6), which are evenly arranged.

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