Orange-shaped filtering and separating device for dissolving and removing high-water-content sludge by using subcritical DME (Dimethyl Ether)

Abstract

The utility model relates to the technical field of solid waste treatment, in particular to an orange-shaped filtering and separating device for subcritical DME (Dimethyl Ether) dissolution of high-water-content sludge, which comprises a box body, a filtering and separating unit arranged on the inner side of the box body, a flow guide unit arranged above the filtering and separating unit, and a liquid phase collecting pipe arranged in the middle of the filtering and separating unit, the filtering and separating unit comprises a horizontal bottom plate and a plurality of filtering plates, the horizontal bottom plate is matched with the box body to form a closed space, the plurality of filtering plates are vertically connected with the horizontal bottom plate and are distributed around the periphery of the liquid phase collecting pipe, and the plurality of filtering plates divide the inner side of the box body into a plurality of solid-liquid separating areas and a plurality of liquid phase collecting areas; the solid-liquid separation areas and the liquid-phase collection areas are arranged at intervals, the liquid-phase collection areas are communicated with the liquid-phase collection pipe, openings are formed in the horizontal bottom plate corresponding to the solid-liquid separation areas, and sealing plates are arranged at the positions of the openings; a first purging assembly is arranged at the top of the box body corresponding to the solid-liquid separation area, and a second purging assembly is arranged on the inner wall of the box body corresponding to the liquid phase collection area.

Description

Technical Field

[0001] The utility model relates to the technical field of solid waste treatment, in particular to an orange-shaped filtering and separating device for dissolving high-water-content sludge using subcritical DME. Background Art

[0002] The treatment of high-water sludge is extremely difficult due to its complex organic composition, high water content, and difficulty in dehydration and reduction. Dehydration of high-water sludge is an important link in the treatment process of high-water sludge. Its purpose is to remove excess water from high-water sludge, reduce its volume, and facilitate transportation and subsequent treatment. At present, for the dehydration of high-water solid waste such as sludge, the method of adding organic / inorganic flocculants to assist plate and frame / centrifugal mechanical dehydration is usually adopted. However, this technical solution has the following problems:

[0003] 1. In order to better destroy the sludge floc structure, the existing process promotes solid-liquid separation by adding quicklime, organic / inorganic polymers, oxidants, etc., and achieves partial water removal under mechanical pressure or centrifugal force. However, a large amount of dry matter will not only increase the solid waste treatment load, but also reduce the amount insignificantly, and will have a huge negative impact on the safety of solid and liquid phase products (such as pH, etc.).

[0004] 2. The method of adding conditioning agents combined with mechanical dehydration can usually only achieve the purpose of solid waste dehydration, but cannot meet the needs of deep dehydration. Therefore, it is still necessary to couple thermal drying and other processes to further release the moisture in the solid waste. Not only is the processing cost high, but the processing efficiency is also extremely low.

[0005] 3. When the solid-liquid mixture enters the mechanical dehydration device, a good solid-liquid separation effect can be obtained in the initial stage of separation; however, as the amount of solid-liquid mixture entering increases, the filter plate gradually becomes clogged until the blockage is severe and the liquid phase cannot pass through the filter medium, making filtration difficult to complete and the solid-liquid separation efficiency low.

[0006] 4. The device needs to be disassembled frequently to recover the solid phase material, or to clean, replace, and repair the filter plate. The operation process is extremely cumbersome and the efficiency of solid phase material recovery is low. Damage is likely to occur during the disassembly process, resulting in a shortened service life and increased maintenance costs. Summary of the invention

[0007] The utility model provides an orange-shaped filtering and separating device for dissolving high-water-content sludge with subcritical DME, which can solve the problems of easy clogging of filter plates, low solid-liquid separation efficiency, difficulty in recovering solid phase products, high material cost and high maintenance cost in the prior art.

[0008] The present application provides the following technical solution: an orange-shaped filtration and separation device for dissolving high-water-content sludge with subcritical DME, comprising a box body, a filtration and separation unit is provided inside the box body, a guide unit is provided above the filtration and separation unit, a liquid phase collecting pipe is provided in the middle of the filtration and separation unit, the filtration and separation unit comprises a horizontal bottom plate and a plurality of filter plates, the horizontal bottom plate cooperates with the box body to form a closed space, the filtration and separation unit and the guide unit are located in the closed space, the plurality of filter plates are vertically connected to the horizontal bottom plate and are distributed around the periphery of the liquid phase collecting pipe, the plurality of filter plates divide the inside of the box body into a plurality of solid-liquid separation areas and liquid phase collecting areas, the solid-liquid separation areas and the liquid phase collecting areas are arranged at intervals, the filter plates on both sides of the liquid phase collecting area cooperate with the guide unit to form a closed space in the liquid phase collecting area, the liquid phase collecting area is connected to the liquid phase collecting pipe, an opening is provided on the horizontal bottom plate corresponding to the solid-liquid separation area, and a sealing plate is provided at the opening position; a first purge assembly is provided on the top of the box body corresponding to the solid-liquid separation area, and a second purge assembly is provided on the inner wall of the box body corresponding to the liquid phase collecting area.

[0009] Technical principles and beneficial effects:

[0010] 1. The enclosed space in the box can effectively ensure the airtightness of the filtration separation system, and can well maintain the stable closed environment required for subcritical DME; the inner side of the box is divided into multiple solid-liquid separation areas and liquid phase collection areas through the filter plate, and the solid-liquid separation areas and liquid phase collection areas are arranged in a ring-shaped structure, which greatly increases the actual filtration area within a limited space and effectively improves the space utilization rate. Compared with the existing technology, the filtration area is increased to 19 times, which effectively avoids the problem of clogging of the filtration channel, thereby ensuring the solid-liquid separation effect and improving the filtration efficiency.

[0011] 2. The liquid phase in the sludge enters the liquid phase collection area through the filter plate and is recovered along the liquid phase collection pipe. The solid phase in the sludge can be quickly and conveniently recovered through the openings and sealing plates set in the solid-liquid separation area, avoiding problems such as inefficiency and wear caused by repeated disassembly of the device.

[0012] 3. The first purge assembly directly above the solid-liquid separation area and the second purge assembly on the inner wall of the liquid phase collection area can effectively purge both sides of the filter plate, which can efficiently remove some fine particles that may adhere to the filter plate, avoid clogging of the filter plate, and improve filtration efficiency.

[0013] 4. Use the recyclable organic solvent subcritical DME (subcritical dimethyl ether) to treat high-water sludge such as sludge. The raw material DME is recycled after gasification, and the recovery rate can reach more than 99%. After treatment, the moisture content of solid waste is reduced to 10%-30%, which is equivalent to thermal drying treatment, and the energy consumption is only about half of thermal drying, which greatly reduces the cost of treatment. The filtration separation, product collection and cleaning work are completed by simple mechanical control, which greatly improves the efficiency of waste treatment. At the same time, since there is no addition of exogenous conditioning agents, the solid and liquid phase products obtained do not pose environmental risks and have good resource utilization value.

[0014] Furthermore, the filtration separation unit is provided with 36-72 solid-liquid separation zones and 36-72 liquid phase collection zones.

[0015] The combination of solid-liquid separation area + liquid collection area is set up in 36-72 groups, which can ensure sufficient filtration area and ensure that the filter plate is fully purged to remove residual substances. If it is less than 36-72 groups, the number of filtration separation units in a unit space will decrease, and the materials will accumulate at the bottom of the filtration unit, reducing the space utilization efficiency; if it is greater than 36-72 groups, the solid phase material will adhere to the filtration interface, making purging and cleaning difficult.

[0016] Furthermore, the angle between the filter plates on both sides of the solid-liquid separation zone is α, and the angle between the filter plates on both sides of the liquid phase collection zone is β, α>β, preferably α:β=4:1.

[0017] Ensure that the volume of the solid-liquid separation area is greater than that of the liquid phase collection area, ensure that the sludge accumulates in the solid-liquid separation area, and allow the liquid phase in the sludge to enter the liquid phase collection area through the filter plate and be recovered through the liquid phase collection pipe, while improving the space utilization rate and ensuring the filtering effect. When α:β=4:1, the solid-liquid separation efficiency is the highest, while ensuring the sludge dehydration effect.

[0018] Furthermore, the filter plate has a thickness of 0.005 m and a pore size of 200-300 meshes.

[0019] The pore size of the filter plate is 200-300 mesh, which can effectively prevent larger particles of solid phase substances from passing through, thereby controlling the loss of solid phase and improving the recovery rate of solid phase. The thickness of the filter plate is 0.005m, which can reduce the flow resistance of liquid phase substances in the filter plate, allowing liquid phase substances to pass through the filter plate more smoothly, improving the efficiency of liquid phase substance recovery, and making it easier to blow away residual substances, prevent blockage, and ensure the normal operation of the filtration separation device.

[0020] Furthermore, the guide unit includes a plurality of guide parts, which are fixedly connected to the filter plates on both sides of the liquid phase collection area, so that the liquid phase collection area forms a closed space, and a guide groove is provided between two adjacent guide parts, and the guide groove is connected to the solid-liquid separation area.

[0021] The guide part is fixedly connected to the filter plates on both sides of the liquid phase collection area, so that the liquid phase collection area forms a closed space, which can effectively prevent the sludge from directly entering the liquid phase collection area, thereby improving the purity and efficiency of liquid phase material recovery; at the same time, when passing through the guide groove, the sludge quickly and accurately enters the solid-liquid separation area, thereby improving the solid-liquid separation efficiency.

[0022] Furthermore, one side of the sealing plate is hinged on the horizontal bottom plate, and the other side of the sealing plate is detachably connected to the horizontal bottom plate through a sealed reinforcement component. A sealing ring is provided on the edge of the sealing plate, and the sealing plate is connected to a driving device, which is used to drive the sealing plate to move to open or close the opening.

[0023] Furthermore, a solid phase collecting unit is provided below the filtering and separating unit, and the solid phase collecting unit is connected with the solid-liquid separation zone through an opening.

[0024] The sealing plate can be operated quickly and conveniently through the driving device, so that the solid phase material in the solid-liquid separation zone falls into the solid phase collection unit through the opening, which is convenient for the recovery of the solid phase material and avoids the problems of inefficiency and wear caused by repeated disassembly of the device.

[0025] Furthermore, a guide groove is provided on the horizontal bottom plate of the liquid phase collection area, and the guide groove is used to guide the liquid substance entering the liquid phase collection area into the liquid phase collection pipe.

[0026] Through the guidance of the guide groove, the liquid substance can be accurately collected and discharged, avoiding the liquid substance from diffusing or staying in the liquid phase collection area, thereby ensuring the efficient collection of the liquid phase substance.

[0027] The airflow generated by the air pump is transmitted to the purge assembly through the connecting pipe. The purge assembly can spray the airflow to the target area to remove the blocked contaminants.

[0028] Furthermore, the upper portion of the box body is a conical structure, the lower portion of the box body is a cylindrical structure, and an inlet is provided at the top of the conical structure.

[0029] The conical structure of the upper part of the box body can cooperate with the guide unit to guide the sludge entering the box body, thereby improving the filtering efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the box structure of the first embodiment of an orange-shaped filtration and separation device for subcritical DME dissolving high-water sludge of the utility model;

[0031] Figure 2This is an axial diagram of a flow guide unit and a filtration separation unit of an orange-shaped filtration separation device for subcritical DME dissolving high-water sludge in the utility model;

[0032] Figure 3 for Figure 1 AA section view;

[0033] Figure 4 for Figure 1 BB section view. DETAILED DESCRIPTION

[0034] The following is further described in detail through specific implementation methods:

[0035] The marks in the drawings of the specification include: box body 1, guide unit 2, guide part 201, guide groove 202, filtering and separating unit 3, solid-liquid separation area 301, liquid phase collecting area 302, solid phase collecting unit 4, liquid phase collecting pipe 5, first purge assembly 6, second purge assembly 7, horizontal bottom plate 8, guide groove 801, filter plate 9, sealing plate 10, and driving device 11.

[0036] Embodiment 1

[0037] like Figures 1 to 4 As shown, an orange-shaped filtering and separation device for dissolving high-water sludge with subcritical DME includes a box 1, the upper part of the box 1 is a conical structure, the top of the conical structure is provided with an inlet, the lower part of the box 1 is a cylindrical structure, the box 1 is a high-pressure closed container, and the pressure bearing strength of the box 1 is 1.0MPa. A filtering and separation unit 3 is provided inside the cylindrical structure of the box 1, and a guide unit 2 is provided above the filtering and separation unit 3. The guide unit 2 cooperates with the conical structure of the box 1 to guide the sludge entering the box 1. A solid phase collection unit 4 is provided below the filtering and separation unit 3, and a liquid phase collection pipe 5 is provided in the middle of the filtering and separation unit 3. One end of the liquid phase collection pipe 5 is connected to the filtering and separation unit 3, and the other end of the liquid phase collection pipe 5 extends out of the box 1 and is connected to an external device, and the external device is used to process and recycle the liquid phase material.

[0038] The filtering and separation unit 3 includes a horizontal bottom plate 8 and a plurality of filter plates 9. The horizontal bottom plate 8 cooperates with the box body 1 to form a closed space. The filtering and separation unit 3 and the flow guide unit 2 are located in the closed space. The plurality of filter plates 9 are vertically fixedly connected to the horizontal bottom plate 8 and are distributed around the periphery of the liquid phase collection pipe 5. The plurality of filter plates 9 divide the inner side of the box body 1 into a plurality of solid-liquid separation areas 301 and liquid phase collection areas 302. The solid-liquid separation areas 301 and the liquid phase collection areas 302 are arranged in an annular interval to form an orange segment structure. The filter plates 9 on both sides of the liquid phase collection area 302 cooperate with the flow guide unit 2 to form a closed space in the liquid phase collection area 302, and the liquid phase collection area 302 is connected to the liquid phase collection pipe 5. The flow guide unit 2 includes a plurality of guide parts 201, which are fixedly connected to the filter plates 9 on both sides of the liquid phase collection area 302, so that the liquid phase collection area 302 forms a closed space, and a guide groove 202 is provided between two adjacent guide parts 201, and the guide groove 202 is connected to the solid-liquid separation area 301. The filter plate 9 is fixedly connected to the box body 1, the horizontal bottom plate 8, the guide part 201, and the liquid phase collection pipe 5 by welding. An opening is provided on the horizontal bottom plate 8 corresponding to the solid-liquid separation area 301, and the solid phase collection unit 4 is connected to the solid-liquid separation area 301 through the opening, and a sealing plate 10 is provided at the opening position. One side of the sealing plate 10 is hinged on the horizontal bottom plate 8, and the other side of the sealing plate 10 is detachably connected to the horizontal bottom plate 8 through a sealed reinforcement component. A sealing ring is provided on the edge of the sealing plate 10, and the sealing ring is used to seal the gap between the sealing plate 10 and the opening. The sealing plate 10 is connected to the driving end of the driving device 11, and the driving device 11 is used to drive the sealing plate 10 to move to open or close the opening. The driving device can be a hydraulic driving device or a motor driving device. The sealing reinforcement component can adopt a snap structure or a lock structure. The lock core of the lock structure can be connected to a driving device such as a motor or a cylinder to realize automatic opening or locking of the sealing plate 10. A guide groove 801 is provided on the horizontal bottom plate 8 corresponding to the liquid phase collection area 302, and the guide groove 801 is used to guide the liquid substance entering the liquid phase collection area 302 into the liquid phase collection tube 5. A first purge assembly 6 is provided on the inner top of the box body 1 corresponding to the solid-liquid separation zone 301 , and a second purge assembly 7 is provided on the inner wall of the box body 1 corresponding to the liquid phase collection zone 302 . Both the first purge assembly 6 and the second purge assembly 7 are connected to an air pump.The first purge assembly 6 includes 3-5 first nozzles, the number of which can be adjusted according to demand. The first nozzle is located directly above the solid-liquid separation zone 301, and is used to purge the inner wall of the filter plate 9 on the side opposite to the solid-liquid separation zone 301. The first nozzle is provided with a first jet hole connected to the air pump, and a valve for controlling the opening and closing of the first jet hole is provided at the first jet hole; the second purge assembly 7 includes a plurality of second nozzles, and the second nozzle is used to purge the outer wall of the filter plate 9 on the side opposite to the liquid phase collection zone 302. The second nozzle is provided with a second jet hole connected to the air pump, and the jet direction of the second jet hole is perpendicular to the filter plate 9, and a valve for controlling the opening and closing of the second jet hole is provided at the first jet hole. The first nozzle and the second nozzle can be rotatable nozzles, or the filter plate 9 can be purged from top to bottom through valve control to remove residual substances on the filter plate 9.

[0039] A subcritical DME dissolution and separation method for high-water sludge by orange-type filtration, the specific steps are as follows:

[0040] S1. Subcritical DME dissolving high water content sludge enters the box body 1 from the inlet at the top of the box body 1, and enters each solid-liquid separation zone 301 of the filtration separation unit 3 along the guide groove 202 of the guide unit 2. The liquid phase substances in the subcritical DME dissolving high water content sludge enter the liquid phase collection zone 302 through the filter plates 9 on both sides of each solid-liquid separation zone 301, and the solid phase substances in the subcritical DME dissolving high water content sludge are retained in the solid-liquid separation zone 301. The dehydration pressure of the subcritical DME dissolving high water content sludge in the box body 1 is 0.5MPa-0.8MPa, and the temperature in the box body 1 is 20-25℃. Subcritical DME dissolves the DME in high-water-content sludge. It is a volatile organic solvent that is liquid at normal pressure and liquid above 0.5MPa. After entering the box 1, DME evaporates until the pressure inside the box 1 reaches 0.5MPa-0.8MPa and remains in liquid state, while meeting the dehydration requirements.

[0041] S2, the liquid phase material entering the liquid phase collection area 302 flows into the liquid phase collection pipe 5 along the guide groove 801, and enters the liquid phase separation and recovery device along the liquid phase collection pipe 5;

[0042] S3, after the liquid phase substances in the solid-liquid separation zone 301 are separated, the sealing plate 10 is controlled by the driving device 11 to open the opening at the bottom of the solid-liquid separation zone 301, so that the solid phase substances in the solid-liquid separation zone 301 fall into the solid phase collection unit 4 from the opening;

[0043] S4. After the liquid and solid substances in the high-water-content sludge are separated and collected by subcritical DME dissolution, the first purge assembly 6 directly above the solid-liquid separation area 301 and the second purge assembly 7 on the inner wall of the liquid phase collection area 302 are started respectively to purge the filter plate 9 from both sides to remove the residual substances on the filter plate 9. Specifically, the first purge component 6 is started to work, and the inner wall of the filter plate 9 on the side opposite to the solid-liquid separation zone 301 is purged from top to bottom. The residual substances on the inner wall of the filter plate are removed from top to bottom through the first purge component 6, and the residual substances enter the solid phase collection unit 4 through the opening on the bottom plate; the first purge component 6 is closed, and the second purge component 7 is started to work. The jet direction of the second purge component 7 is perpendicular to the outer wall of the filter plate 9 on the side opposite to the liquid phase collection zone 302. The residual substances in the filter holes of the filter plate 9 are blown into the solid-liquid separation zone 301 through the second purge component 7; the second purge component 7 is closed, and the first purge component 6 is started again to purge and remove the residual substances in the solid-liquid separation zone 301 from top to bottom, and the residual substances enter the solid phase collection unit 4 through the opening. The filter plate 9 is purged alternately and changed direction through the first purge component 6 and the second purge component 7, which effectively improves the cleanliness and cleaning efficiency of the filter plate 9. The purge pressures of the first purge component 6 and the second purge component 7 are both 1MPa-2MPa.

[0044] The filtering and separation unit 3 is provided with 36-72 solid-liquid separation zones 301 and 36-72 liquid phase collecting zones 302. The angle between the filter plates 9 on both sides of the solid-liquid separation zone 301 is α, and the angle between the filter plates 9 on both sides of the liquid phase collecting zone 302 is β, α>β, preferably α:β=4:1.

[0045] The outer radius R of the filtration separation unit 3 is 0.5-1.0m, and the height is 0.5-1.0m; the radius r of the liquid phase collection pipe 5 is 0.10-0.20m; the cross section of the guide groove 801 of the liquid phase collection area 302 is semicircular, the radius of the semicircle is 0.005-0.010m, and the length of the guide groove 801 is a semicircular tube of 0.4-0.8m; the area of ​​the horizontal bottom plate 8 is 0.754m 2 -3.014m 2 (The horizontal bottom plate 8 is annular, and its area is also equivalent to the filtering area of ​​the horizontal filter plate in the prior art, and the calculation formula is S = πR 2 -πr 2 The filter plate 9 is rectangular, with a thickness of 0.005 m and a pore size of 200-300 mesh. The length of the bottom edge of the filter plate 9 connected to the horizontal bottom plate 8 is 0.4-0.8 m, and the height is 0.5-1.0 m. There are 72-144 filter plates 9 in 36-72 solid-liquid separation zones 301, and the total filtration area of ​​the filter plates 9 is 14.4-115.2 m 2. Compared with the horizontal filter plates in the prior art, the filter area of ​​the filter plates 9 arranged in an orange segment shape is increased by 19.10-38.22 times. The orange segment filtering and separation device processes 30-180 tons of solid waste per day, and the batch processing capacity is 0.75-4.50 tons. Taking municipal sludge with a moisture content of 80% as an example (organic matter content is 50%), when the mass ratio of subcritical DME (subcritical dimethyl ether) to sludge is about 1:15, the moisture content of the solid phase product can be reduced to about 30%, and the organic matter extraction rate is about 30% (organic matter content is about 41%). At the same time, the recovery rate of subcritical DME in the liquid phase reaches more than 99%, which greatly saves energy consumption and costs, and improves the value of product resource utilization.

[0046] Embodiment 2

[0047] The difference between this embodiment and the first embodiment is that the solid phase collection unit 4 can be installed on the box body 1 by a detachable connection method such as a bolt connection or a threaded connection. When the solid phase material in the solid phase collection unit 4 is full, the solid phase material can be recovered by disassembling the solid phase collection unit 4.

[0048] The above is only an embodiment of the utility model. The utility model is not limited to the field involved in this implementation case. The common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An orange-type filtration and separation device for dissolving high-water sludge with subcritical DME, comprising a housing, characterized in that: A filtering and separation unit is provided inside the box body, a guide unit is provided above the filtering and separation unit, a liquid phase collecting pipe is provided in the middle of the filtering and separation unit, the filtering and separation unit comprises a horizontal bottom plate and a plurality of filter plates, the horizontal bottom plate cooperates with the box body to form a closed space, the filtering and separation unit and the guide unit are located in the closed space, the plurality of filter plates are vertically connected to the horizontal bottom plate and are distributed around the periphery of the liquid phase collecting pipe, the plurality of filter plates divide the inside of the box body into a plurality of solid-liquid separation areas and liquid phase collecting areas, the solid-liquid separation areas and the liquid phase collecting areas are arranged at intervals, the filter plates on both sides of the liquid phase collecting area cooperate with the guide unit to form a closed space in the liquid phase collecting area, the liquid phase collecting area is connected with the liquid phase collecting pipe, an opening is provided on the horizontal bottom plate corresponding to the solid-liquid separation area, and a sealing plate is provided at the opening position; a first purge assembly is provided on the top of the box body corresponding to the solid-liquid separation area, and a second purge assembly is provided on the inner wall of the box body corresponding to the liquid phase collecting area.

2. The orange-type filtration separation device for dissolving high-water sludge with subcritical DME according to claim 1, characterized in that: The filtering and separation unit is provided with 36-72 solid-liquid separation zones and 36-72 liquid phase collecting zones.

3. The orange-type filtration separation device for dissolving high-water sludge with subcritical DME according to claim 1, characterized in that: The included angle of the filter plates on both sides of the solid-liquid separation zone is α, and the included angle of the filter plates on both sides of the liquid phase collection zone is β, α>β.

4. The orange-type filtration separation device for dissolving high-water sludge with subcritical DME according to claim 1, characterized in that: The filter plate has a thickness of 0.005 m and a pore size of 200-300 meshes.

5. The orange-type filtration separation device for dissolving high-water sludge with subcritical DME according to claim 1, characterized in that: The guide unit includes a plurality of guide parts, which are fixedly connected to the filter plates on both sides of the liquid phase collection area to form a closed space in the liquid phase collection area. A guide groove is provided between two adjacent guide parts, and the guide groove is connected to the solid-liquid separation area.

6. The orange-type filtration separation device for dissolving high-water sludge with subcritical DME according to claim 1, characterized in that: One side of the sealing plate is hinged on the horizontal bottom plate, and the other side of the sealing plate is detachably connected to the horizontal bottom plate through a sealed reinforcement component. A sealing ring is provided on the edge of the sealing plate, and the sealing plate is connected to a driving device, which is used to drive the sealing plate to move to open or close the opening.

7. The orange-type filtration separation device for dissolving high-water sludge with subcritical DME according to claim 1, characterized in that: A solid phase collecting unit is provided below the filtering and separating unit, and the solid phase collecting unit is communicated with the solid-liquid separation zone through an opening.

8. The orange-type filtration separation device for dissolving high-water sludge with subcritical DME according to claim 1, characterized in that: A guide groove is arranged on the horizontal bottom plate of the liquid phase collection area, and the guide groove is used to guide the liquid substances entering the liquid phase collection area into the liquid phase collection pipe.

9. The orange-type filtration separation device for dissolving high-water sludge with subcritical DME according to claim 1, characterized in that: The first purge assembly and the second purge assembly are both connected to an air pump.

10. The orange-type filtration separation device for dissolving high-water sludge with subcritical DME according to claim 1, characterized in that: The upper part of the box body is a conical structure, the lower part of the box body is a cylindrical structure, and the top of the conical structure is provided with an inlet.

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