CN218537931U - Liquid storage tank for belt filter - Google Patents
Liquid storage tank for belt filter Download PDFInfo
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- CN218537931U CN218537931U CN202222773331.1U CN202222773331U CN218537931U CN 218537931 U CN218537931 U CN 218537931U CN 202222773331 U CN202222773331 U CN 202222773331U CN 218537931 U CN218537931 U CN 218537931U
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Abstract
The utility model relates to a liquid storage pot for belt filter, including jar body 1 and safety guard 2, jar 1 vertical setting of body, inside is formed with stock solution chamber 11, is provided with feed liquor pipe 12 and intercommunication mouth 13 on the top surface, is provided with overflow mouth 14 on the side. One end of the liquid inlet pipe 12 is positioned outside the tank body 1, and the other end vertically penetrates through the top surface of the tank body 1 and extends into the tank body 1. Safety guard 2 is located stock solution chamber 11, and safety guard 2 is formed with the toper safety chamber 21 that the opening is down, and safety guard 2's upper end and 12 lower extremes of feed liquor pipes fixed connection make safety chamber 21 and the inside cavity intercommunication of feed liquor pipe 12. The overflow opening 14 is located above the lower end opening of the safety shield 2. This liquid storage pot can prevent that the negative pressure state that leads to real empty room when jar internal filtrate discharge is greater than the replenishment from being destroyed to and the too big or filter cloth permeability variation of vacuum pump power causes the interior negative pressure of vacuum chamber to rise and leads to in the storage pot filtrate by the suck-back real empty room, the unable problem of normally working of belt filter that leads to.
Description
Technical Field
The utility model relates to a liquid storage pot for belt filter especially relates to the structure of liquid storage pot.
Background
The belt filter is a device which takes filter cloth as a filter medium and realizes solid-liquid separation of materials by means of vacuum negative pressure. As shown in figure 1, the belt filter comprises a filter cloth 4, a vacuum chamber 5 and a vacuum pump 6, wherein the vacuum chamber 5 is arranged below the filter cloth 4, an opening at the upper part of the vacuum chamber 5 is tightly attached to the filter cloth 4, the vacuum chamber 5 is communicated with a storage tank 7 positioned below the vacuum chamber 5 through a transfusion pipe 73, and the lower end of the transfusion pipe 73 extends into an inner cavity of the storage tank 7. The upper part of the storage tank 7 is provided with a pressure stabilizing port 72 for communicating with the atmosphere, and the bottom part is provided with a discharge port 71. The vacuum pump 6 communicates with the upper portion of the vacuum chamber 5 through a vacuum pipe 61. When the belt filter works, the vacuum pump 6 pumps air in the vacuum chamber 5 through the vacuum tube 61 to keep the vacuum pressure in the vacuum chamber 5, a filtration area is formed on the filter cloth 4, and the filtrate 8 passes through the filter cloth 4, enters the vacuum chamber 5, is concentrated to the bottom under the action of gravity, and flows into the storage tank 7 through the infusion tube 73.
When the vacuum filter works, the pipe orifice at the lower end of the infusion pipe 73 enters the filtrate 8 in the storage tank, is sealed by the filtrate 8, and the filtrate enters the storage tank 7 by utilizing the height difference between the vacuum chamber 5 and the storage tank 7 and is discharged outwards through the discharge port 71.
However, the normal operation of the belt filter is affected by the unstable power of the vacuum pump 6, the permeability change of the filter cloth or the fluctuation of the discharge amount of the storage tank 7. For example, when the discharge amount of the storage tank 7 is larger than the supplement amount, the liquid level in the storage tank decreases below the nozzle of the infusion tube 73, and at this time, the nozzle of the infusion tube 73 cannot be sealed, so that negative pressure cannot be formed in the vacuum chamber 5, and the filtrate can pass through the filter cloth 4. When the discharge amount of the storage tank 7 is smaller than the replenishment amount, the liquid level rises, and when the permeability of the filter cloth becomes poor, the liquid in the storage tank 7 is sucked back into the vacuum chamber 5 by the negative pressure. In addition, the filtrate 8 in the reservoir 7 is sucked back into the vacuum chamber 5 by negative pressure due to the excessive power of the vacuum pump 6. No matter negative pressure cannot be formed in the vacuum chamber 5 or filtrate in the storage tank is sucked back into the vacuum chamber 5 by the negative pressure, the belt filter cannot work normally, and normal production is influenced.
The utility model discloses a first purpose is solved the storage tank emission and is greater than the problem that leads to real empty room's negative pressure state to be destroyed when the replenishment volume, makes the unable normal work of belt filter.
The second purpose is to solve the problem that the filter cannot work normally because the negative pressure in the vacuum chamber is increased to cause that the filtrate in the storage tank is sucked back to the vacuum chamber due to the reasons of overlarge vacuum pump power or poor permeability of the filter cloth and the like.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a liquid storage pot for belt filter, including jar body 1 and safety guard 2, jar 1 vertical setting of body, inside is formed with stock solution chamber 11, is provided with feed liquor pipe 12 and intercommunication mouth 13 on the top surface, is provided with overflow mouth 14 on the side. One end of the liquid inlet pipe 12 is positioned outside the tank body 1 and is used for being communicated with an external vacuum chamber of the belt filter; the other end vertically penetrates through the top surface of the tank body 1 and extends into the tank body 1. Safety guard 2 is located stock solution chamber 11, and safety guard 2 is formed with the conical safety chamber 21 that the opening is down, and safety guard 2's upper end and 12 lower extremes of feed liquor pipe fixed connection make safety chamber 21 and 12 inside cavitys intercommunications of feed liquor pipe, and overflow opening 14 is located 2 lower extreme open-ended tops of safety guard.
Therefore, when the belt filter works, filtrate flows into the tank body 1 through the liquid inlet pipe 12 after entering the vacuum chamber 5, is discharged from the overflow port 14 after the liquid level in the tank body rises to be higher than the overflow port 14, and the opening at the lower end of the safety cover 2 is positioned below the liquid level and is sealed by the filtrate, so that the situation that the negative pressure state is damaged because the discharge amount of the filtrate in the tank body is larger than the liquid inlet amount is avoided.
Because set up overflow mouth 14 on jar side of body 1, can discharge the filtrating of overflow mouth 14 top in the stock solution chamber 11 through overflow mouth 14, set up overflow mouth 14 in 2 lower extreme open-ended tops of safety guard, can make the discharge of the interior filtrating of jar body 1 be less than or equal to the feed liquor volume of feed liquor pipe 12 all the time, prevent that the discharge of the interior filtrating of jar body 1 is greater than the feed liquor volume and leads to the interior liquid level of stock solution chamber 11 to descend, there is filtrating in the stock solution chamber 11 of 2 lower extreme open-ended tops of safety guard all the time, it is sealed with the opening of safety guard 2 below through filtrating. The problem of 1 discharge of jar body be greater than when the make-up volume the liquid level be less than feed liquor pipe lower extreme in the liquid storage cavity 11, the liquid level in the liquid storage cavity 11 can't make the vacuum chamber can not keep the negative pressure state to feed liquor pipe 12 is sealed, lead to the unable normal work of belt filter is solved.
Set up safety guard 2 at feed liquor pipe 12 lower extreme, set up 2 lower extreme openings of safety guard, inside forms toper safety chamber 21, makes safety chamber 21 and feed liquor pipe 12 intercommunication, can increase the space of 12 lower parts of feed liquor pipe, and when the great back suction of negative pressure liquid storage chamber 11 was in real empty room 5 was during filtrating in, can hold the interior filtrating of liquid storage chamber 11 who is sucked back by the negative pressure in the vacuum chamber through safety chamber 21, prevent that the filtrating in the liquid storage chamber 11 from being sucked back to real empty room 5.
Preferably, the filter also comprises a floating ball 3, the floating ball 3 is arranged in the safety chamber 21, the floating ball 3 is arranged to seal the lower end opening of the liquid inlet pipe 12 when the liquid level in the safety chamber 21 reaches the top of the safety chamber 21, and the floating ball 3 is made of a material with density smaller than that of the filtrate.
Because the floating ball 3 is arranged in the safety cavity 21, the density of the floating ball 3 is less than that of the filtrate, the floating ball 3 floats on the filtrate, if the power of the vacuum pump is overlarge or the transmittance of the filter cloth is poor, the negative pressure in the cavity 21 is overlarge, and when the filtrate suck-back liquid level reaches the top of the safety cavity 21, the lower end opening of the liquid inlet pipe 12 is blocked by the floating ball 3, so that the filtrate can be prevented from being sucked into the vacuum chamber.
The floating ball 3 is arranged to seal the lower end opening of the liquid inlet pipe 12 when the liquid level in the safety cavity 21 reaches the top of the safety cavity 21, so that the filtrate in the liquid storage cavity 11 can be prevented from being sucked back into the vacuum chamber 5 to influence the normal work of the belt filter.
Preferably, the safety chamber 21 is conical, and the diameter of the floating ball 3 is larger than that of the lower opening of the liquid inlet pipe 12. The safety chamber 21 is arranged such that the side wall of the safety chamber 21 is tangent to the outer surface of the floating ball 3 when the floating ball 3 seals the lower end opening of the liquid inlet pipe 12.
The diameter that sets up floater 3 is greater than feed liquor pipe 12 lower extreme open-ended diameter, make floater 3 can be sealed with feed liquor pipe 12 lower extreme opening, it is conical to set up safety chamber 21, safety chamber 21 sets up to when floater 3 seals the lower extreme opening of feed liquor pipe 12, the lateral wall of safety chamber 21 is tangent with the surface of floater 3, make floater 3 be located safety chamber 21, can lead floater 3 through safety chamber 21, can be when the filtrating in safety chamber 21 is the suck-back by the negative pressure and the liquid level rises, floater 3 rises along with the liquid level, when the liquid level rises to safety chamber 21 top, floater 3 seals the lower extreme opening of feed liquor pipe 12, prevent that the filtrating in the stock solution chamber 11 from being sucked back to in the vacuum chamber 5.
Preferably, the safety hood further comprises a screen plate 22, the screen plate 22 is a circular plate and is horizontally arranged in the safety hood 2 and positioned at the bottom opening of the safety hood 2, and the periphery of the screen plate 22 is fixedly connected with the inner wall of the safety hood 2.
The net plate 22 is arranged, the net plate 22 is horizontally arranged in the safety cover 2 and is positioned at the opening at the bottom of the safety cavity 21, the floating ball 3 can be sealed in the safety cavity 21, and the floating ball 3 is prevented from being separated from the safety cavity 21.
Preferably, the lower end opening of the safety cover 2 is positioned at two thirds of the height of the tank body 1.
The lower end opening of the safety cover 2 is arranged at the two thirds position of the height of the tank body 1, a certain amount of filtrate can be stored in the liquid storage cavity 11 and used as the stock preparation of the downstream operation, and the influence on the production of the downstream operation when the belt filter is in fault is prevented.
Preferably, the distance between the overflow opening 14 and the lower opening of the safety shield 2 is half the height of the safety shield 2.
The distance between the overflow port 14 and the lower opening of the safety hood 2 is half of the height of the safety hood 2, so that sufficient filtrate can be always contained in the liquid storage cavity 11 at the upper part of the lower opening of the safety hood 2. When filtrate in the liquid storage cavity 11 is prevented from being sucked back to the vacuum chamber 5, the filtrate in the liquid storage cavity 11 at the upper part of the lower end opening of the safety cover 2 is not enough to fill the vacuum chamber, so that the floating ball 3 cannot seal the liquid inlet pipe 12, and the filtrate and air enter the vacuum chamber 5 from the liquid inlet pipe 12.
Preferably, the bottom of the tank 1 is provided with a drain 15, and the drain 15 is provided with a drain valve 151.
The bottom of the tank body 1 is provided with a drain hole 15, the drain hole 15 is provided with a drain valve 151, so that filtrate in the liquid storage cavity 11 can be drained when equipment is overhauled, and the filtrate in the liquid storage cavity 11 can be drained to be used as stock for downstream operation when the belt filter fails.
Drawings
FIG. 1 is a schematic view of a belt filter.
FIG. 2 is a schematic view of a receiver tank for a belt filter.
FIG. 3 isbase:Sub>A schematic cross-sectional view taken along line A-A in FIG. 2.
FIG. 4 is a schematic view showing the use state of a liquid storage tank for a belt filter.
In the figure, 1, a tank body, 11, a liquid storage cavity, 12, a liquid inlet pipe, 13, a communication port, 131, a communication valve, 14, an overflow port, 141, an overflow valve, 15, an evacuation port, 151, an evacuation valve, 2, a safety cover, 21, a safety cavity, 22, a screen plate, 3, a floating ball, 4, filter cloth, 5, a vacuum chamber, 6, a vacuum pump, 61, a vacuum pipe, 7, a storage tank, 71, a discharge port, 72, a pressure stabilizing port, 73, an infusion pipe and 8 filtrate.
Detailed Description
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like elements and techniques of the present invention so that advantages and features of the present invention may be more readily understood when implemented in a suitable environment. The following description is an embodiment of the claims of the present invention.
As shown in figure 2, the liquid storage tank for the belt filter comprises a tank body 1 and a safety cover 2, wherein the tank body 1 is cylindrical and is vertically arranged, a liquid storage cavity 11 is formed in the tank body 1, and the liquid storage cavity 11 is used for containing filtrate. The top surface of the tank body 1 is provided with a liquid inlet pipe 12 and a communication port 13. One end of the liquid inlet pipe 12 is positioned outside the tank body 1 and is used for being communicated with the vacuum chamber 5, and the other end of the liquid inlet pipe vertically extends into the tank body 1. The communication port 13 is provided with a communication valve 131, and when the communication valve 131 is opened, the communication port 13 can be communicated with the atmosphere, so that the liquid storage chamber 11 can be maintained at the atmospheric pressure, and the filtrate in the liquid storage chamber 11 can flow out from the overflow port 14.
Be provided with overflow mouth 14 on the side of the jar body 1, overflow mouth 14 is located 2 lower extreme open-ended tops of safety guard, set up the filtrating that overflow mouth 14 is used for discharging overflow mouth 14 tops on the jar body 1, set up overflow mouth 14 in 2 lower extreme open-ended tops of safety guard, can make the discharge of the internal filtrating of jar 1 be less than or equal to the feed liquor volume of feed liquor pipe 12 all the time, it leads to the interior liquid level of stock solution chamber 11 to descend to prevent that the discharge of the internal filtrating of jar 1 from being greater than the feed liquor volume, there is the filtrating in the stock solution chamber 11 of 2 lower extreme open-ended tops of safety guard all the time, can be sealed with the opening of safety guard 2 below through filtrating, prevent that the atmosphere from getting into in feed liquor pipe 12 gets into 5, lead to the unable normal work of real empty room of belt filter.
The top of the safety cover 2 is fixedly connected with the lower end of the liquid inlet pipe 12, the lower end of the safety cover is open, a safety cavity 21 with a downward opening is formed inside the safety cover, and the safety cavity 21 is communicated with the inner cavity of the liquid inlet pipe 12.
Set up safety guard 2 at feed liquor pipe 12 lower extreme, set up 2 lower extreme openings of safety guard, the inside forms safe chamber 21, makes safe chamber 21 and feed liquor pipe 12 intercommunication, can increase the space of 12 lower parts of feed liquor pipe, and when the great filtrating of stock solution chamber 11 of negative pressure was inhaled backward in vacuum chamber 5, held filtrating through safe chamber 21, reduced the possibility in the stock solution chamber 11 was inhaled backward in the vacuum chamber 5 to the filtrating.
As shown in fig. 2 and fig. 3, the liquid storage tank for the belt filter further comprises a floating ball 3, the floating ball 3 is arranged in the safety chamber 21, the floating ball 3 is arranged to seal the lower end opening of the liquid inlet pipe 12 when the liquid level in the safety chamber 21 reaches the top of the safety chamber 21, and the floating ball 3 is made of a material with density smaller than that of the filtrate. The density of the floating ball 3 is less than that of the filtrate and is used for floating on the liquid level of the filtrate, the lower end opening of the liquid inlet pipe 12 is circular, and the diameter of the floating ball 3 is greater than that of the lower end opening of the liquid inlet pipe 12 and is less than or equal to that of the top of the safety cavity 21.
The floating ball 3 is arranged in the safety cavity 21, so that the diameter of the floating ball 3 is larger than or equal to the diameter of the lower end opening of the liquid inlet pipe 12, when the filtrate in the safety cavity 21 is sucked back by negative pressure and the liquid level rises, the floating ball 3 rises along with the liquid level, and when the liquid level rises to the top of the safety cavity 21, the floating ball 3 seals the lower end opening of the liquid inlet pipe 12, so that the filtrate in the liquid storage cavity 11 can be prevented from being sucked back into the vacuum chamber 5.
As shown in fig. 2, the safety cover 2 is conical, the tip portion is fixedly connected with the bottom of the liquid inlet pipe 12, the lower end of the safety cover is open, a conical safety cavity 21 with a downward opening is formed, the safety cavity 21 is arranged in a manner that when the floating ball 3 seals the lower end opening of the liquid inlet pipe 12, the side wall of the safety cavity 21 is tangent to the outer surface of the floating ball 3, and the diameter of the floating ball 3 is larger than that of the lower end opening of the liquid inlet pipe 12.
Set up safety guard 2 and be conical for safety guard 2, inside is formed with conical safety chamber 21, point portion and 12 lower extreme fixed connection of feed liquor pipe, the bottom opening, safety chamber 21 sets up to when the lower extreme opening of feed liquor pipe 12 is sealed when floater 3, the lateral wall of safety chamber 21 is tangent with the surface of floater 3, can carry on spacingly to floater 3 through safety guard 2, when the liquid level in safety chamber 21 rises, make floater 3 rise to the lower extreme opening part of feed liquor pipe 12 along safety guard 2's inner wall under the buoyancy, it is sealed with the lower extreme opening of drain pipe, prevent that the filtrating in the stock solution chamber 11 from being suck-backed back in real empty room 5.
The liquid storage tank for the belt filter further comprises a screen plate 22, the screen plate 22 is a circular plate and is horizontally arranged in the safety cover 2 and is positioned at an opening at the bottom of the safety cavity 21, and the periphery of the screen plate 22 is fixedly connected with the inner wall of the safety cover 2. The net plate 22 is arranged at the opening at the bottom of the safety cavity 21, so that the floating ball 3 can be sealed in the safety cavity 21, the floating ball 3 is prevented from being separated from the safety cavity 21, the sealing effect cannot be achieved, and the structure is simple.
The floating ball 3 can also be arranged in the safety cavity 21 through a connecting line, for example, one end of the connecting line is fixedly connected with the top of the inner wall of the safety cover 2, the other end of the connecting line is fixedly connected with the floating ball 3, and the length of the connecting line is smaller than the height of the safety cover 2.
Preferably, the lower opening of the safety cover 2 is positioned at two thirds of the height of the tank body 1. Set up 2 lower extreme openings of safety guard and be located 1 two-thirds of height of jar body department, can store a certain amount of filtrating in liquid storage cavity 11, regard the filtrating in the liquid storage cavity 11 as the low reaches operation and prepare material, when preventing the belt filter trouble, influence the production of low reaches operation.
The distance between the overflow port 14 and the lower end opening of the safety shield 2 is half of the height of the safety shield 2. The distance between the overflow port 14 and the lower opening of the safety hood 2 is half of the height of the safety hood 2, so that sufficient filtrate can be always contained in the liquid storage cavity 11 at the upper part of the lower opening of the safety hood 2. When filtrate in the liquid storage cavity 11 is prevented from being sucked back to the vacuum chamber 5, the filtrate in the liquid storage cavity 11 at the upper part of the lower end opening of the safety cover 2 is not enough to fill the vacuum chamber, so that the floating ball 3 cannot seal the liquid inlet pipe 12, and the filtrate and air enter the vacuum chamber 5 from the liquid inlet pipe 12.
The bottom surface of the tank body 1 is of an arc-shaped structure, the bottom of the tank body 1 is provided with a drain port 15, and the drain port 15 is provided with a drain valve 151. The bottom of the tank body 1 is provided with a drain hole 15, the drain hole 15 is provided with a drain valve 151, so that filtrate in the liquid storage cavity 11 can be drained when equipment is overhauled, and the filtrate in the liquid storage cavity 11 can be drained to be used as stock for downstream operation when the belt filter fails.
When the vacuum liquid storage tank is used, as shown in fig. 4, the tank body 1 is arranged below the vacuum chamber 5, the liquid inlet pipe 12 is communicated with the vacuum chamber 5, the communication valve 131 is closed, the overflow valve 141 is closed, the emptying valve 151 is closed, the vacuum pump 6 is opened to pump the vacuum chamber 5 into a negative pressure state, filtrate of materials on the filter cloth 4 is sucked into the vacuum chamber 5 through the negative pressure in the vacuum chamber 5, the filtrate in the vacuum chamber 5 enters the liquid storage cavity 11 from the vacuum chamber 5 through the liquid inlet pipe 12 under the action of gravity, when the liquid level of the filtrate 8 in the liquid storage cavity 11 is higher than the opening at the lower end of the vacuum cover, the overflow valve 141 and the communication valve 131 are opened, and the filtrate 8 higher than the overflow pipe 14 is discharged from the overflow port 14.
Be provided with overflow mouth 14 on jar side 1, overflow mouth 14 is located 2 lower extreme open-ended tops of safety guard, discharge the filtrating that is located overflow mouth 14 top through overflow mouth 14, set up overflow mouth 14 in 2 lower extreme open-ended tops of safety guard, can make the discharge of the interior filtrating of jar body 1 be less than or equal to the feed liquor volume of feed liquor pipe 12 all the time, prevent that the discharge of the interior filtrating of jar body 1 is greater than the feed liquor volume of feed liquor pipe 12 and leads to the interior liquid level of stock solution chamber 11 to descend, there is the filtrating in the stock solution chamber 11 of 2 lower extreme open-ended tops of safety guard all the time, can seal the opening of safety guard 2 below through the filtrating, prevent that the atmosphere from getting into in feed liquor pipe 12 gets into vacuum chamber 5, lead to the unable normal work of belt filter.
Set up safety guard 2 at feed liquor pipe 12 lower extreme, set up 2 lower extreme openings of safety guard, the inside forms safety chamber 21, makes safety chamber 21 and feed liquor pipe 12 intercommunication, can increase the space of 12 lower parts of feed liquor pipe, and when the great back suction filtrating of negative pressure in real empty room 5, through safety chamber 21 hold filtrating, the possibility of the filtrating of reduction stock solution chamber 11 in being sucked back to real empty room 5. The floating ball 3 is arranged in the safety cavity 21, the floating ball 3 is made of a material with the density smaller than that of filtrate, so that the floating ball 3 can float on the filtrate, the floating ball 3 is arranged to seal the lower end opening of the liquid inlet pipe 12 when the liquid level in the safety cavity 21 reaches the top of the safety cavity 21, and the situation that the filtrate in the liquid storage cavity 11 is sucked back into the vacuum chamber 5 to influence the normal work of the belt filter can be prevented.
The diameter that sets up floater 3 is greater than the diameter of feed liquor pipe 12 lower extreme open-ended, make floater 3 can be sealed with feed liquor pipe 12 lower extreme opening, it is conical to set up safety chamber 21, safety chamber 21 sets up to when the floater 3 seals the lower extreme opening of feed liquor pipe 12, the lateral wall of safety chamber 21 is tangent with the surface of floater 3, make floater 3 be located safety chamber 21, can lead floater 3 through safety chamber 21, can be in safety chamber 21 the filtrating of negative pressure suck-back and the liquid level rises, floater 3 rises along with the liquid level together, when the liquid level rises to safety chamber 21 top, floater 3 is sealed with the lower extreme opening of feed liquor pipe 12, prevent that the filtrating in the stock solution chamber 11 from being sucked back to in the vacuum chamber 5.
The net plate 22 is arranged, the net plate 22 is horizontally arranged in the safety cover 2 and is positioned at the opening at the bottom of the safety cavity 21, the floating ball 3 can be sealed in the safety cavity 21, and the floating ball 3 is prevented from being separated from the safety cavity 21. The lower end opening of the safety cover 2 is arranged at the two thirds position of the height of the tank body 1, a certain amount of filtrate can be stored in the liquid storage cavity 11 and used as the stock preparation of the downstream operation, and the influence on the production of the downstream operation when the belt filter is in fault is prevented.
The distance between the overflow port 14 and the lower opening of the safety hood 2 is half of the height of the safety hood 2, so that sufficient filtrate can be always contained in the liquid storage cavity 11 at the upper part of the lower opening of the safety hood 2. When filtrate in the liquid storage cavity 11 is prevented from being sucked back to the vacuum chamber 5, the filtrate in the liquid storage cavity 11 at the upper part of the lower end opening of the safety cover 2 is not enough to fill the vacuum chamber, so that the floating ball 3 cannot seal the liquid inlet pipe 12, and the filtrate and air enter the vacuum chamber 5 from the liquid inlet pipe 12. The bottom of the tank body 1 is provided with a drain hole 15, the drain hole 15 is provided with a drain valve 151, so that filtrate in the liquid storage cavity 11 can be drained when equipment is overhauled, and the filtrate in the liquid storage cavity 11 can be drained to be used as stock for downstream operation when the belt filter fails.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim.
Claims (7)
1. A liquid storage tank for a belt filter is characterized by comprising a tank body (1) and a safety cover (2),
the tank body (1) is vertically arranged, a liquid storage cavity (11) is formed inside the tank body, a liquid inlet pipe (12) and a communication port (13) are arranged on the top surface of the tank body, and an overflow port (14) is arranged on the side surface of the tank body;
one end of the liquid inlet pipe (12) is positioned outside the tank body (1) and is used for being communicated with a vacuum chamber of the belt filter; the other end vertically penetrates through the top surface of the tank body (1) and extends into the tank body (1);
the safety cover (2) is positioned in the liquid storage cavity (11);
the safety cover (2) is provided with a conical safety cavity (21) with a downward opening;
the upper end of the safety cover (2) is fixedly connected with the lower end of the liquid inlet pipe (12) to ensure that the safety cavity (21) is communicated with the vacuum chamber;
the overflow port (14) is positioned above the lower end opening of the safety cover (2).
2. Receiver for belt filters according to claim 1, characterized in that it further comprises a floating ball (3),
the floating ball (3) is arranged in the safety cavity (21);
the floating ball (3) is arranged in a way that when the liquid level in the safety cavity (21) reaches the top of the safety cavity (21), the floating ball (3) seals the lower end opening of the liquid inlet pipe (12), and the floating ball (3) is made of a material with the density smaller than that of the filtrate.
3. Reservoir for belt filters according to claim 2, characterized in that the safety chamber (21) is conical;
the diameter of the floating ball (3) is larger than that of the opening at the lower end of the liquid inlet pipe (12);
the safety cavity (21) is arranged in such a way that when the floating ball (3) seals the lower end opening of the liquid inlet pipe (12), the side wall of the safety cavity (21) is tangent to the outer surface of the floating ball (3).
4. Receiver for a belt filter according to claim 3, further comprising a screen (22),
the screen plate (22) is a circular plate, is horizontally arranged in the safety hood (2) and is positioned at the bottom opening of the safety hood (2), and the periphery of the screen plate (22) is fixedly connected with the inner wall of the safety hood (2).
5. Reservoir tank for a belt filter according to claim 4,
the lower end opening of the safety cover (2) is positioned at two thirds of the height of the tank body (1).
6. Liquid storage tank for a belt filter according to claim 5, characterized in that the distance between the overflow opening (14) and the lower opening of the safety hood (2) is half the height of the safety hood (2).
7. Liquid storage tank for a belt filter according to claim 6, characterized in that the tank (1) is provided with a drain (15) at its bottom,
and an emptying valve (151) is arranged on the emptying port (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222773331.1U CN218537931U (en) | 2022-10-20 | 2022-10-20 | Liquid storage tank for belt filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222773331.1U CN218537931U (en) | 2022-10-20 | 2022-10-20 | Liquid storage tank for belt filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218537931U true CN218537931U (en) | 2023-02-28 |
Family
ID=85279368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222773331.1U Active CN218537931U (en) | 2022-10-20 | 2022-10-20 | Liquid storage tank for belt filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218537931U (en) |
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2022
- 2022-10-20 CN CN202222773331.1U patent/CN218537931U/en active Active
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