Cross-flow ZS filtering equipment

By using cross-flow ZS filtration equipment and nitrogen backflushing technology, the problem of decreased filtration efficiency during the maintenance of a single catalytic slurry filter has been solved, enabling the recovery and reuse of filter residue and improving filtration efficiency and filter element life.

CN223800158UActive Publication Date: 2026-01-16GUANGDONG UNIV OF PETROCHEMICAL TECH
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Patent Information

Application Number
CN202520391328.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-07
Publication Date
2026-01-16
Estimated Expiration
2035-03-07

AI Technical Summary

Technical Problem

The existing single catalytic slurry filter cannot continuously output products during maintenance, resulting in a decrease in filtration efficiency. The filter element also suffers from reduced filtration efficiency due to the adhesion of solid particles.

Method used

The ZS cross-flow filtration system employs two catalytic oil slurry filters that work alternately, combined with nitrogen backflushing technology, to achieve the recovery and reuse of filter residue, ensuring the filtration efficiency and lifespan of the filter element.

Benefits of technology

It improves the efficiency of solid-liquid separation and raw material utilization, extends the service life of filter elements, and ensures stable output of liquid products.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses cross-flow type ZS filtering equipment, which belongs to the technical field of solid-liquid separation, and comprises a raw material pre-stirring tank, the left side of the raw material pre-stirring tank is communicated with a material filtering device through a connecting pipe I, the right side of the raw material pre-stirring tank is communicated with a raw material buffer tank, and the lower part of the raw material buffer tank is communicated with a connecting pipe II; a conveying pump is arranged on the second connecting pipe, the tail end of the second connecting pipe is communicated with two conveying branch pipes, the two conveying branch pipes are each provided with a first control valve, the tail ends of the two conveying branch pipes are each communicated with a catalytic slurry oil filter, and the tops of the two catalytic slurry oil filters are each communicated with a liquid outlet pipe; the solid-liquid separation device has the advantages that the solid-liquid separation efficiency is high, the solid-liquid separation effect is good, the filter element is subjected to back flushing through nitrogen, filter residues attached to the surface of the filter element fall off, the filtering efficiency of the filter element is improved, and the service life of the filter element is prolonged.
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Description

TECHNICAL FIELD

[0001] The utility model relates to solid -liquid separation technical field, concretely relates to a cross -flow type ZS filter equipment. BACKGROUND

[0002] ZS filter equipment is candle type filter, and the candle type filter is an automatic pressure type filter device, which mainly comprises a cylinder, a filter core, filter cloth, a filter aid, a computer control system and accessories.

[0003] The candle type filter can be widely applied to solid-liquid separation and filtration in the industries of petroleum, plastics, electroplating, chemical industry, ceramics, pharmaceuticals, sugar production and the like.In the food industry, it can be used for the filtration of fruit glucose syrup, decarburization and decolorization filtration of citric acid, malic acid, sulfuric acid and lactic acid, and lycopene filtration; in the pharmaceutical industry, it can be used for filtration in the biopharmaceutical industry, fermentation liquid filtration and crystallization filtration; and in the chemical industry, it can be used for filtration and recovery of pesticide intermediates, filtration of titanium dioxide and black carbon powder in waste plastic and waste tire oil.

[0004] The candle type filter has the characteristics of high efficiency and energy saving, high precision, easy maintenance, safety and reliability, and high automation degree.It adopts PLC control to realize the automatic operation of liquid inlet, filter cake layer construction, filtration, liquid discharge, cake removal, cake discharge and cleaning.Compared with traditional filter equipment, the candle type filter adopts full-sealing filtration to prevent leakage and improve product yield, and saves labor, materials, energy and space.

[0005] The main purpose of using the candle type filter to filter the catalytic oil slurry is to remove catalyst particles and other impurities to improve the quality and application value of the oil slurry.

[0006] In the solid-liquid separation of catalytic oil slurry, the existing candle type filter is usually a single catalytic oil slurry filter, which does not produce products during maintenance, resulting in a decrease in filtration efficiency, and solid particles adhere to the filter core during long-term use, resulting in a decrease in filtration efficiency of the filter core. Utility model content

[0007] To solve the above technical problems, the utility model provides a cross-flow type ZS filter equipment.

[0008] The utility model discloses a technical scheme is: a cross -flow formula ZS filter equipment, including raw material pre -mixing jar, the left side of raw material pre -mixing jar is connected with filter material device through the connecting pipe no.

[0009] Further, the filter material device includes a filter material bin, the top of the filter material bin is provided with an inlet, the inside of the filter material bin is fixedly connected with a filter screen, one side of the filter screen is provided with a discharge port, the bottom of the filter material bin is connected with a discharge pipe, the inside of the discharge pipe is vertically rotatably connected with a spiral discharge rod, the top of the filter material bin is fixedly connected with a discharge motor for driving the spiral discharge rod to rotate, the lower end of the discharge pipe is transversely connected with a blowing pipe, the right end of the blowing pipe is connected with the connecting pipe no.

[0010] It is specified that the large particle substances in the raw materials are filtered through the filter screen, and then the large particle substances are discharged from the discharge port, and the raw materials meeting the production requirements are discharged into the raw material pre-mixing jar through the spiral discharge rod.

[0011] Further, the raw material pre-mixing jar includes a mixing jar body, the inside of the mixing jar body is vertically rotatably connected with a stirring rod no.

[0012] It is specified that the solid raw materials and the liquid raw materials are mixed through the raw material pre-mixing jar, and the solid-liquid mixture after mixing is conveyed into the raw material buffer tank through the feed pump.

[0013] Further, the raw material buffer tank includes a buffer tank body, the inside of the buffer tank body is rotatably connected with a stirring rod no.

[0014] Explanation: The solid-liquid mixture formed by further stirring and mixing the raw materials by the stirring rod II driven by the stirring motor II is discharged into the catalytic oil slurry filter for filtration.

[0015] Further, the catalytic oil slurry filter comprises a filter bin, a connecting liquid outlet block is threadedly connected to the top of the filter bin, a plurality of filter cores are mounted below the liquid outlet block, a cavity is arranged in the liquid outlet block, the top of the plurality of filter cores is communicated with the cavity, the top of the cavity is communicated with the liquid outlet pipe, the left lower side of the filter bin is communicated with the material conveying branch pipe, a slag discharge pipe is communicated with the lower end of the filter bin, a control valve five is arranged on the slag discharge pipe, the end of the slag discharge pipe is communicated with the top of the raw material buffer tank, a reflux pipe is fixedly communicated with the side wall of the filter bin, a control valve six is arranged on the reflux pipe, and the end of the reflux pipe is communicated with the top of the raw material buffer tank.

[0016] Explanation: The solid-liquid is separated by the filter core, the liquid material is discharged into the product tank through the liquid outlet pipe, the slag is precipitated at the bottom of the filter bin and is discharged into the raw material buffer tank through the slag discharge pipe for further mixing to form a new solid-liquid mixture, nitrogen is discharged into the filter core through the aeration branch pipe, the filter core is back-flushed, the filter slag attached to the surface of the filter core is removed, and the suspended filter slag is returned to the raw material buffer tank through the reflux pipe for further stirring and mixing.

[0017] The beneficial effects of the present application are as follows:

[0018] The two catalytic oil slurry filters are alternately operated to continuously and stably output liquid products meeting the production requirements, the filter slag is discharged into the raw material buffer tank through the slag discharge pipe and the reflux pipe for secondary stirring and mixing, and the utilization rate of the raw materials is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic view of the present application.

[0020] Figure 2 is a structural schematic view of the filter material device of the present application.

[0021] Figure 3 is a structural schematic view of the raw material pre-stirring tank of the present application.

[0022] Figure 4 is a structural schematic view of the raw material buffer tank of the present application.

[0023] Figure 5It is the structural schematic view of the catalytic oil slurry filter of the utility model.

[0024] Wherein, 1 - raw material pre - mixing tank, 2 - connecting pipe one, 3 - filter material device, 4 - raw material buffer tank, 5 - connecting pipe two, 51 - delivery pump, 52 - feed branch pipe, 521 - control valve one, 6 - catalytic oil slurry filter, 7 - liquid outlet pipe, 71 - control valve two, 8 - product tank, 9 - nitrogen compressor, 91 - inflation main pipe, 92 - control valve three, 93 - inflation branch pipe, 31 - filter material bin, 32 - feed inlet, 33 - filter screen, 34 - discharge port, 35 - discharge pipe, 36 - spiral discharge rod, 37 - discharge motor, 38 - blowing pipe, 39 - connecting pipe three, 391 - control valve four, 11 - stirring tank body, 12 - stirring rod one, 13 - stirring motor one, 14 - feed pipe, 15 - feed pump, 16 - liquid inlet, 17 - pressure relief valve, 41 - buffer tank body, 42 - stirring rod two, 43 - stirring motor two, 61 - filter bin, 62 - liquid outlet block, 63 - filter core, 621 - cavity, 64 - deslagging pipe, 641 - control valve five, 65 - return pipe, 651 - control valve six, 66 - pressure gauge, 67 - thermometer. DETAILED DESCRIPTION

[0025] Example 1:

[0026] As Figure 1 shown, a kind of cross-flow ZS filter equipment, including raw material pre - mixing tank 1, the left side of raw material pre - mixing tank 1 is connected with filter material device 3 by connecting pipe one 2, the right side of raw material pre - mixing tank 1 is communicated with raw material buffer tank 4, the lower side of raw material buffer tank 4 is communicated with connecting pipe two 5, and delivery pump 51 is equipped on connecting pipe two 5, the end of connecting pipe two 5 is communicated with two feed branch pipes 52, and control valve one 521 is equipped on two feed branch pipes 52, and the end of two feed branch pipes 52 is communicated with one catalytic oil slurry filter 6, and the top of two catalytic oil slurry filters 6 is communicated with liquid outlet pipe 7, and the end of two liquid outlet pipes 7 is communicated with product tank 8, and control valve two 71 is equipped on two liquid outlet pipes 7, and the top of two catalytic oil slurry filters 6 is communicated with inflation branch pipe 93, and control valve three 92 is equipped on two inflation branch pipes 93, and the end of two inflation branch pipes 93 is communicated with inflation main pipe 91, and the end of inflation main pipe 91 is communicated with nitrogen compressor 9.

[0027] As Figure 2As shown, the filter device 3 includes a filter bin 31, the top of the filter bin 31 is provided with a feed port 32, the inside of the filter bin 31 is fixedly connected with a filter screen 33, one side of the filter screen 33 is provided with a discharge port 34, the bottom of the filter bin 31 is connected with a discharge pipe 35, the inside of the discharge pipe 35 is vertically rotatably connected with a spiral discharge rod 36, the top of the filter bin 31 is fixedly connected with a discharge motor 37 for driving the spiral discharge rod 36 to rotate, the lower end of the discharge pipe 35 is transversely communicated with a blowing pipe 38, the right end of the blowing pipe 38 is communicated with the connecting pipe one 2, the left end of the blowing pipe 38 is communicated with the gas filling main pipe 91 through the connecting pipe three 39, and the connecting pipe three 39 is provided with a control valve four 391.

[0028] The large particle substances in the raw materials are filtered through the filter screen 33, and then the large particle substances are discharged from the discharge port 34, and the raw materials meeting the production requirements are discharged into the raw material pre-mixing tank 1 through the spiral discharge rod 36.

[0029] As shown in Figure 3 The raw material pre-mixing tank 1 includes a mixing tank body 11, the inside of the mixing tank body 11 is vertically rotatably connected with a stirring rod one 12, the top of the mixing tank body 11 is fixedly connected with a stirring motor one 13 for driving the stirring rod one 12 to rotate, the lower part of the mixing tank body 11 is communicated with a material conveying pipe 14, the material conveying pipe 14 is provided with a material conveying pump 15, the right end of the material conveying pipe 14 is communicated with the raw material buffer tank 4, and the top of the raw material pre-mixing tank 1 is provided with a liquid inlet 16 and a pressure relief valve 17.

[0030] The solid raw materials and the liquid raw materials are mixed through the raw material pre-mixing tank 1, and the solid-liquid mixture after mixing is conveyed to the raw material buffer tank 4 through the material conveying pump 15.

[0031] As shown in Figure 4 The raw material buffer tank 4 includes a buffer tank body 41, the inside of the buffer tank body 41 is rotatably connected with a stirring rod two 42, and the top of the buffer tank body 41 is fixedly connected with a stirring motor two 43 for driving the stirring rod two 42 to rotate.

[0032] The stirring rod two 42 is driven by the stirring motor two 42 to further stir and mix the raw materials, and the formed solid-liquid mixture is discharged into the catalytic oil slurry filter 6 for filtration.

[0033] As shown in Figure 5As shown, the catalytic oil slurry filter 6 includes a filter bin 61, the top of the filter bin 61 is threadedly connected with a connecting liquid outlet block 62, a plurality of filter cartridges 63 are installed below the liquid outlet block 62, a cavity 621 is arranged inside the liquid outlet block 62, the top of the plurality of filter cartridges 63 are communicated with the cavity 621, the top of the cavity 621 is communicated with the liquid outlet pipe 7, the left lower side of the filter bin 61 is communicated with the material conveying branch pipe 52, the lower end of the filter bin 61 is communicated with a slag discharge pipe 64, the slag discharge pipe 64 is provided with a control valve five 641, the tail end of the slag discharge pipe 64 is communicated with the top of the raw material buffer tank 4, the side wall of the filter bin 61 is fixedly communicated with a backflow pipe 65, the backflow pipe 65 is provided with a control valve six 651, the tail end of the backflow pipe 65 is communicated with the top of the raw material buffer tank 4, the side wall of the filter bin 61 is installed with a pressure gauge 66 for detecting the pressure inside the filter bin 61 and a thermometer 67 for detecting the temperature inside the filter bin 61.

[0034] The solid-liquid is separated by the filter cartridges 63, the liquid material enters the liquid outlet pipe and is discharged into the product tank 8, the residue is precipitated at the bottom of the filter bin 61 and is discharged into the raw material buffer tank 4 through the slag discharge pipe 64 for further mixing to form a new solid-liquid mixture, nitrogen is discharged into the inside of the filter cartridges 63 through the aeration branch pipe 93 to backflush the filter cartridges 63, so that the filter residue attached to the surface of the filter cartridges 63 falls off, and then the suspended filter residue is backflowed to the raw material buffer tank 4 through the backflow pipe 65 for further stirring and mixing.

[0035] The working principle of the above embodiment includes the following steps:

[0036] The solid raw material is filtered by the filter device 3 to obtain the solid raw material meeting the raw material adding condition, the solid raw material is discharged into the blowing pipe 38 through the spiral discharge rod 36, and then is blown out into the raw material pre-stirring tank 1 by nitrogen in the connecting pipe three 39. The stirring motor one 13 drives the stirring rod one 12 to mix the solid raw material and the liquid raw material in the stirring tank body 11 to form the mixture A. The mixture A is conveyed to the raw material buffer tank 4 by the conveying pump 15 for further stirring to form the mixture B. The mixture A and the mixture B both contain the liquid product, part of the large-particle undissolved solid material and part of the small-particle undissolved solid material, and the difference lies in that the solid material content in the mixture B is lower than that in the mixture B. The mixture B is pumped into the two catalytic oil slurry filters 6 by the conveying pump 51 for solid-liquid separation. The large-particle solid material sinks to the bottom of the filter bin 61, and the small-particle solid material is suspended in the liquid in the filter bin 61 and adheres to the surface of the filter core 63 under the blockage of the filter core 63. The liquid product enters the product tank 8 through the liquid outlet pipe 7. When the filter core 63 is excessively adhered by the small-particle solid material, the filtering performance is reduced. Nitrogen is filled into the filter core 63 by the nitrogen compressor 9 to make the small-particle solid material adhered to the surface of the filter core 63 fall off, and then the small-particle solid material is returned to the raw material buffer tank 4 through the return pipe 65 for continuous stirring. The large-particle solid material at the bottom of the filter bin 61 enters the raw material buffer tank 4 again through the slag discharge pipe 64 for stirring. The two catalytic oil slurry filters 6 work alternately to stably output the liquid product.

[0037] The conveying pump 51, the control valve one 521, the control valve two 71, the nitrogen compressor 9, the control valve three 92, the discharge motor 37, the control valve four 391, the stirring motor one 13, the conveying pump 15, the stirring motor two 43, the control valve five 641, the control valve six 651, the pressure gauge 66 and the thermometer 67 in the above embodiments are all commercially available products, as long as they can realize the functions of the utility model, and the person skilled in the art can select and use them according to the conventional common sense, which is not specially limited here.

Claims

1. A ZS filter apparatus of cross-flow type, characterized in that, Including raw material pre-mixer (1), the left side of raw material pre-mixer (1) is communicated with filter device (3) by connecting pipe one (2), the right side of raw material pre-mixer (1) is communicated with raw material buffer tank (4), the lower side of raw material buffer tank (4) is communicated with connecting pipe two (5), connecting pipe two (5) is equipped with delivery pump (51) on it, the end of connecting pipe two (5) is communicated with two delivery branch pipes (52), control valve one (521) is arranged on both two delivery branch pipes (52), the end of both two delivery branch pipes (52) is communicated with one catalytic slurry filter (6), the top of both two catalytic slurry filters (6) is communicated with liquid outlet pipe (7), the end of both two liquid outlet pipes (7) is communicated with product tank (8) in common, control valve two (71) is arranged on both two liquid outlet pipes (7), the top of both two catalytic slurry filters (6) is communicated with aeration branch pipe (93), control valve three (92) is arranged on both two aeration branch pipes (93), the end of both two aeration branch pipes (93) is communicated with aeration main pipe (91), the end of aeration main pipe (91) is communicated with nitrogen compressor (9).

2. A cross-flow ZS filtration apparatus as claimed in claim 1, wherein, The filter device (3) includes a filter bin (31), the top of the filter bin (31) is provided with a feed inlet (32), the inside of the filter bin (31) is fixedly connected with a filter screen (33), one side of the filter screen (33) is provided with a discharge port (34), the bottom of the filter bin (31) is connected with a discharge pipe (35), the inside of the discharge pipe (35) is vertically rotatably connected with a spiral discharge rod (36), the top of the filter bin (31) is fixedly connected with a discharge motor (37) for driving the spiral discharge rod (36) to rotate, the lower end of the discharge pipe (35) is transversely communicated with a blowing pipe (38), the right end of the blowing pipe (38) is communicated with the connecting pipe one (2), the left end of the blowing pipe (38) is communicated with the aeration main pipe (91) through a connecting pipe three (39), and the connecting pipe three (39) is provided with a control valve four (391).

3. A cross-flow ZS filtration apparatus as claimed in claim 1, wherein, The raw material pre-mixer (1) includes a stirring tank body (11), the inside of the stirring tank body (11) is vertically rotatably connected with a stirring rod one (12), the top of the stirring tank body (11) is fixedly connected with a stirring motor one (13) for driving the stirring rod one (12) to rotate, the lower side of the stirring tank body (11) is communicated with a feeding pipe (14), the feeding pipe (14) is provided with a feeding pump (15), the right end of the feeding pipe (14) is communicated with the raw material buffer tank (4), the top of the raw material pre-mixer (1) is provided with a liquid inlet (16) and a pressure relief valve (17).

4. A cross-flow ZS filtration apparatus as claimed in claim 1, wherein, The raw material buffer tank (4) includes a buffer tank body (41), the inside of the buffer tank body (41) is rotatably connected with a stirring rod two (42), the top of the buffer tank body (41) is fixedly connected with a stirring motor two (43) for driving the stirring rod two (42) to rotate.

5. A cross-flow ZS filtration apparatus as claimed in claim 1, wherein, The catalytic oil slurry filter (6) comprises a filter bin (61), the top of the filter bin (61) is threadedly connected with a connecting liquid outlet block (62), a plurality of filter cores (63) are installed below the liquid outlet block (62), a cavity (621) is arranged in the liquid outlet block (62), the top of the cavity (621) is communicated with the liquid outlet pipe (7), the left lower side of the filter bin (61) is communicated with the material conveying branch pipe (52), the lower end of the filter bin (61) is communicated with a slag discharge pipe (64), the slag discharge pipe (64) is provided with a control valve five (641), the tail end of the slag discharge pipe (64) is communicated with the top of the raw material buffer tank (4), the side wall of the filter bin (61) is fixedly communicated with a backflow pipe (65), the backflow pipe (65) is provided with a control valve six (651), the tail end of the backflow pipe (65) is communicated with the top of the raw material buffer tank (4), the side wall of the filter bin (61) is provided with a pressure gauge (66) for detecting the pressure in the filter bin (61) and a thermometer (67) for detecting the temperature in the filter bin (61).