Efficient vacuum drum filtering device

Abstract

The utility model discloses an efficient vacuum rotary drum filtering device which comprises a rotary drum vacuum filter, an upper housing, a plate heat exchanger, a gas-liquid separation tank, a vacuum pump, a water suction and filtration tank and an air suction pipeline, the upper housing is arranged at the upper end of the rotary drum vacuum filter and communicated with the air suction pipeline, and a feeding port of the rotary drum vacuum filter is connected with a slurry inlet pump through a feeding pipeline. The feeding pipeline penetrates through the plate heat exchanger for cooling; a high-pressure spray head assembly is arranged on one side of the rotary drum vacuum filter and faces the rotary drum filter cloth, the filtrate output end of the rotary drum vacuum filter is connected with a gas-liquid separation tank, a gas outlet of the gas-liquid separation tank is communicated with a vacuum pump, and a gas outlet of the vacuum pump is communicated with a gas suction pipeline. By arranging the plate heat exchanger at the feeding end, the feeding temperature can be reduced, the turbidity of feed liquid can be improved, and the solid-liquid separation efficiency can be improved; the service life is prolonged to more than 6 months by adopting a high-pressure water jet cleaning mode, the pollution of harmful gas to the environment can be effectively reduced by arranging the gas suction pipeline and the upper housing, and the solid-liquid separator is suitable for solid-liquid separation processes in industries such as chemical engineering, food and pharmacy.

Description

TECHNICAL FIELD

[0001] The utility model relates to solid -liquid separation equipment technical field, concretely is a kind of efficient vacuum drum filter device. BACKGROUND

[0002] Drum vacuum filter is a kind of efficient solid-liquid separation equipment, and its working principle mainly relies on vacuum negative pressure technology. The negative pressure generated by vacuum system makes filtrate form film on the surface of drum, to realize rapid filtration. Its core technology includes drum design, and drum is the core component of drum vacuum filter, and its design directly affects filtration effect.

[0003] Drum is usually made of special material, with wear resistance, corrosion resistance and other characteristics. Vacuum system is optimized, and vacuum system provides power for drum filtration, and its optimization can ensure stable negative pressure environment and improve filtration efficiency. The selection of filter medium, according to the nature of the material to be processed, selects appropriate filter medium to realize efficient solid-liquid separation. Including drum, vacuum system, filter cloth cleaning device and control system. Corrosion-resistant filter cloth is covered on the surface of drum, and negative pressure is formed in the inside through vacuum system, to realize solid-liquid separation.

[0004] In the prior art, the existing vacuum drum filter device generally has the problems of filter cloth easy to block and low solid-liquid separation efficiency, especially for the suspension of chemical industry, harmful gas is also generated, which is easy to cause pollution. INVENTION CONTENTS

[0005] The purpose of this section is to outline some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the title of the utility model in order to avoid obscuring the purpose of this section, the abstract of the specification and the title of the utility model. Such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] Therefore, the purpose of the utility model is to provide an efficient vacuum drum filter device, which improves the filter cloth regeneration effect by 50% by optimizing the filter cloth cleaning method and adopting high-pressure water jet cleaning method, prolongs the service life to more than 6 months, sets up a cooling mechanism before filtrate to improve the solid-liquid separation efficiency, sets up an air suction mechanism to reduce environmental pollution.

[0007] To achieve the above-mentioned purpose of the application, the technical scheme adopted by the utility model is as follows:

[0008] The high-efficiency vacuum drum filter device comprises a drum vacuum filter, an upper cover, a plate heat exchanger, a gas-liquid separation tank, a vacuum pump, a suction filter water tank and a suction pipeline, the upper end of the drum vacuum filter is provided with the upper cover, the top is communicated with the suction pipeline, the feed inlet of the drum vacuum filter is connected with a slurry feeding pump through a feed pipeline, and the feed pipeline passes through the plate heat exchanger to reduce the temperature; a high-pressure nozzle assembly is arranged on one side of the drum vacuum filter and faces the drum filter cloth, and the high-pressure nozzle assembly is connected with a water pump through a pipeline; the filtrate output end of the drum vacuum filter is connected with the gas-liquid separation tank, the gas outlet of the gas-liquid separation tank is communicated with the vacuum pump, the gas outlet of the vacuum pump is communicated with the suction pipeline, and the liquid outlet of the gas-liquid separation tank is connected with the suction filter water tank.

[0009] The main material after dehydration of the drum vacuum filter is scraped by the scraper and is discharged to the conveyor and is collected in the collecting box.

[0010] The high-pressure nozzle assembly is arranged below the scraper, the nozzle is arranged at an angle of 45 degrees and faces the drum surface, and a filter is arranged on the pipeline connected with the water pump II.

[0011] One liquid inlet of the plate heat exchanger is connected with the slurry feeding pump, and the other liquid inlet is connected with a circulating water pump I.

[0012] The suction pipeline is connected with a deodorization tower.

[0013] The drum vacuum filter comprises a drum, the diameter of the drum is 4 m, the length of the drum is 6.9 m, and the rotating speed of the drum is 0.5 r / min.

[0014] The surface of the drum is covered with polypropylene filter cloth, the filtering precision is less than or equal to 10 microns, and the temperature resistance range is from -20 DEG C to 120 DEG C.

[0015] The high-efficiency vacuum drum filter device has the advantages that the structure design is reasonable, the plate heat exchanger arranged at the feed end can reduce the feed temperature and improve the turbidity of the material liquid, the high-pressure water spraying cleaning mode can improve the filter cloth regeneration effect by 50%, prolong the service life to more than 6 months, improve the solid-liquid separation efficiency, prolong the service life of the filter cloth and reduce the operation and maintenance cost, the suction pipeline and the upper cover can effectively reduce the pollution of harmful gas to the environment. DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the present application will be described in detail in combination with the drawings and detailed embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the present application will be described in detail in combination with the drawings and detailed embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0018] Figure 1 It is the whole structure schematic diagram of the efficient vacuum rotary drum filter device.

[0019] The figure label explanation: 1, rotary drum vacuum filter; 2, upper cover shell; 3, plate heat exchanger; 4, gas-liquid separation tank; 5, vacuum pump; 6, suction filter water tank; 7, suction pipeline; 8, slurry pump; 9, high-pressure spray head assembly; 10, dragon; 11, material collecting box; 12, odor removal tower; 13, clean water pump I; 15, clean water pump II; 16, filter. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned purposes, features and advantages of the utility model more apparent and easy to understand, the specific embodiments of the utility model will be described in detail below with reference to the drawings.

[0021] The specific embodiments of the utility model will be described in detail below with reference to the drawings. Figure 1 The specific embodiments of the utility model will be described in detail below with reference to the drawings.

[0022] An efficient vacuum rotary drum filter device, including rotary drum vacuum filter 1, upper cover shell 2, plate heat exchanger 3, gas-liquid separation tank 4, vacuum pump 5, suction filter water tank 6, suction pipeline 7, rotary drum vacuum filter 1 upper end is provided with upper cover shell, and there is gap between the lower end of upper cover shell and rotary drum vacuum filter 1, as air inlet, top inner cavity is provided with suction port and is connected with suction pipeline, most of harmful gas will enter odor removal tower for processing through suction pipeline, and the feed inlet of rotary drum vacuum filter 1 is connected with slurry pump 8 through feed pipeline, and feed pipeline passes through plate heat exchanger and carries out cooling;Rotary drum vacuum filter 1 side is provided with high-pressure spray head assembly 9 towards rotary drum filter cloth, and high-pressure spray head assembly 9 is connected with water pump through pipeline;The filtrate output end of rotary drum vacuum filter 1 is connected with gas-liquid separation tank, the gas outlet of gas-liquid separation tank is communicated with vacuum pump, the gas outlet of vacuum pump is communicated with suction pipeline, and the liquid outlet of gas-liquid separation tank is connected with suction filter water tank.

[0023] The main material of rotary drum vacuum filter 1 after dehydration is scraped off by scraper, and is discharged to dragon 10 for conveying to material collecting box 11 through discharge port, so as to be convenient for entering next process flow.

[0024] The high-pressure spray head assembly 9 is arranged below the scraper and includes a plurality of nozzles arranged in a row, and the spray head is oriented towards the rotary drum surface at an angle of 45 degrees, so as to improve the washing effect and ensure that the washing angle is reasonable.

[0025] One-way inlet of plate heat exchanger is connected with slurry pump 8, and the other way inlet is connected with circulating clean water pump I 13.

[0026] The suction pipeline is connected with odor removal tower 12.

[0027] In this embodiment, the drum vacuum filter 1 is prior art, which includes a drum, a vacuum system, a filter tank and the like structure, the drum is usually made of special material, which has the characteristics of wear resistance, corrosion resistance and the like. The vacuum system provides power for the drum filtration, and its optimization can ensure a stable negative pressure environment and improve the filtration efficiency. It also includes a filter medium, the selection of the filter medium is based on the properties of the treated material, and the appropriate filter medium is selected to achieve efficient solid-liquid separation, and the vacuum system (vacuum degree-0.08 to-0.095 MPa);

[0028] The device also includes a control system, which integrates a PLC module, supports automatic adjustment of the drum speed, vacuum degree and cleaning frequency, and the control system supports remote monitoring and fault diagnosis functions, and can communicate with the upper computer through an Ethernet interface;

[0029] Further, the vacuum pump is also provided with a water inlet and a drain, the water inlet is connected with a clean water pipeline, and the drain is connected with an external drain tank.

[0030] The drum diameter of the drum vacuum filter 1 is 4 m, the length is 6.9 m, and the speed is 0.5 r / min.

[0031] Then, in order to ensure the filtering precision and temperature resistance, specifically, the surface of the drum is covered with polypropylene filter cloth, the filtering precision is ≤10 μm, and the temperature resistance range is-20℃ to 120℃.

[0032] In addition, the circuits, electronic components and modules involved in the utility model are prior art, and those skilled in the art can realize them without further description, and the content protected by the utility model does not involve improvement of internal structure and method.

[0033] When the liquid slurry enters the drum vacuum filter 1, a certain liquid level is maintained, and the vacuum drum is rotated, a negative pressure is formed in the drum, the liquid material is uniformly adsorbed and distributed to the surface of the drum, the filtered liquid penetrates the filter cloth and enters the collection tank, and is output to the gas-liquid separation tank, and the solid material is intercepted on the surface of the filter cloth. When the drum rotates to the discharging position, the vacuum state is stopped, the solid material is scraped off by the scraper, and enters the alligator 10 through the discharge port, all of which are prior art, the input end and the shell of the drum vacuum filter 1 are improved, the plate heat exchanger is additionally provided to reduce the temperature and improve the turbidity of the slurry, the separation effect is improved, the negative pressure air suction pipeline is additionally provided, part of the harmful gas generated can be collected and transferred, the high-pressure nozzle assembly 9 is additionally provided in the area below the scraper to wash and improve the regeneration capacity of the filter cloth.

[0034] However, the utility model has been described above with reference to the embodiments, however, various improvements can be made and equivalent parts can be replaced without departing from the scope of the utility model. In particular, as long as there is no structural conflict, each feature in the embodiments disclosed by the utility model can be combined with each other in any way, and the combinations are not described exhaustively in the specification only for the consideration of omitting the length and saving resources. Therefore, the utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A high efficiency vacuum drum filter apparatus, characterized by, The drum vacuum filter, upper cover, plate heat exchanger, gas-liquid separation tank, vacuum pump, suction filter water tank and suction pipeline are connected, the upper end of the drum vacuum filter is provided with the upper cover, the top is communicated with the suction pipeline, the feed inlet of the drum vacuum filter is connected with the slurry pump through the feed pipeline, the feed pipeline passes through the plate heat exchanger to cool, one side of the drum vacuum filter is provided with the high-pressure nozzle assembly which faces the drum filter cloth, the high-pressure nozzle assembly is connected with the water pump through the pipeline, the filtrate output end of the drum vacuum filter is connected with the gas-liquid separation tank, the gas outlet of the gas-liquid separation tank is communicated with the vacuum pump, the gas outlet of the vacuum pump is communicated with the suction pipeline, and the liquid outlet of the gas-liquid separation tank is connected with the suction filter water tank.

2. The high efficiency vacuum drum filter apparatus of claim 1, wherein, The main material of the drum vacuum filter is scraped by the scraper and discharged to the set material box through the alligator.

3. The high efficiency vacuum drum filter apparatus of claim 1 wherein, The high-pressure nozzle assembly is arranged below the scraper, the nozzle is 45 degrees to the drum surface, and a filter is arranged on the pipeline connected with the clean water pump II.

4. The high efficiency vacuum drum filter apparatus of claim 1 wherein, One liquid inlet of the plate heat exchanger is connected with the slurry pump, and the other liquid inlet is connected with the circulating clean water pump I.

5. The high efficiency vacuum drum filter apparatus as claimed in claim 1, wherein, The suction pipeline is connected with the deodorizing tower.

6. The high efficiency vacuum drum filter apparatus of claim 1 wherein, The drum vacuum filter comprises a drum, the diameter of the drum is 4 m, the length of the drum is 6.9 m, and the rotating speed of the drum is 0.5 r / min.

7. The high efficiency vacuum drum filter apparatus of claim 6, wherein, The surface of the drum is covered with polypropylene filter cloth, and the filtering precision is less than or equal to 10 microns.

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