Recycling device of closed filter

Abstract

The utility model relates to the technical field of filter equipment, in particular to a closed filter recovery device which comprises a tank body and a filter plate arranged in the tank body, a liquid inlet is formed in the side wall of the tank body, and a discharge port extending to the outer side of the tank body is formed in the top of the filter plate; a collecting tank is arranged at the bottom of the filter plate, and one end of the collecting tank is communicated with a discharging pipe extending to the outer side of the tank body; a recycling pipe is arranged at the lower part of the tank body; the recycling pipe and the discharging pipe are communicated with a material temporary storage tank; the sugar liquid recovery efficiency is higher, the recovery time is shortened, the recovery quality is improved, and greater economic benefits are brought to enterprises.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering equipment, in particular to a closed filter recovery device. Background Art

[0002] The closed filter is a precision clarification and filtration equipment widely used in the oil, chemical, food and other industries. It has the characteristics of high efficiency, energy saving, and closed operation. Due to the many advantages of the plate-type closed filter, it is widely used in the production of starch sugar. After the carbon column decolorization, a small amount of granular carbon impurities are inevitably introduced into the syrup, so it needs to be filtered through a plate-type closed filter.

[0003] For example, a Chinese patent with publication number CN203235307U discloses a closed filter with a residual liquid recovery function. This technical solution adds a residual liquid recovery device on the basis of the existing closed filter, so that the residual sugar solution can be fully recovered every time the equipment is cleaned, which not only reduces the waste of raw materials, but also reduces the COD content of sewage and reduces the treatment work of the sewage station.

[0004] However, during the use of the closed filter, a filter layer will still be formed on the closed filter plate, resulting in insufficient recovery of the residual sugar solution, which not only causes waste of raw materials, but also increases the COD content of the sewage and increases the treatment work of the sewage station. Utility Model Content

[0005] The utility model aims to provide a closed filter recovery device, which has higher recovery efficiency for sugar solution, shortens recovery time, improves recovery quality, and brings greater economic benefits to enterprises.

[0006] The embodiments of the present invention are implemented by the following technical solutions:

[0007] A closed filter recovery device comprises a tank body and a filter plate arranged in the tank body, the tank body side wall is provided with a liquid inlet, and the filter plate top is provided with a discharge port extending to the outside of the tank body;

[0008] A collecting groove is provided at the bottom of the filter plate, and one end of the collecting groove is connected to a discharge pipe extending to the outside of the tank body;

[0009] A recovery pipe is arranged at the lower part of the tank body, and the recovery pipe is connected with the discharge pipe to form a temporary material storage tank.

[0010] Furthermore, the discharge pipe is connected with the recovery pipe and enters into the material temporary storage tank together.

[0011] Furthermore, a ventilation device is provided on the top of the tank body, and the ventilation device includes an air inlet pipe and an air outlet hood connected to the air inlet pipe, and a plurality of air vents are provided on the bottom surface of the air outlet hood, and one of the air vents is provided corresponding to one of the filter plates.

[0012] Furthermore, a heating jacket is circumferentially arranged on the outer side of the tank body, an inlet is arranged at the bottom of the heating jacket, and an outlet is arranged at the top of the heating jacket.

[0013] Furthermore, a plurality of partitions are arranged laterally between the heating jacket and the outer side of the tank body, one end of one of two adjacent partitions is connected to the heating jacket, and one end of the other partition is connected to the outer side of the tank body.

[0014] Furthermore, the free ends of two adjacent partitions overlap each other in the longitudinal direction, and the overlapping portion does not exceed half of the length of the partition.

[0015] Furthermore, a sewage pipe is arranged at the bottom of the tank body.

[0016] Furthermore, valves are provided on the discharge pipe, recovery pipe and sewage pipe.

[0017] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0018] The utility model has a reasonable design and a simple structure. By arranging a collecting groove at the bottom of the filter plate, the sugar liquid on the filter plate is directly and centrally recovered. At the same time, the sugar liquid at the lower part of the tank body is recovered by using a recovery pipe, so that the recovery efficiency of the sugar liquid is higher, the recovery time is shortened, the recovery quality is improved, and greater economic benefits are brought to the enterprise. At the same time, the problem of high COD of sewage caused by direct discharge is avoided, and the cost of sewage treatment is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the structure of a closed filter recovery device provided in an embodiment of the utility model;

[0021] Icons: 1-tank body, 2-heating jacket, 21-inlet, 22-outlet, 23-partition, 3-ventilation device, 31-inlet pipe, 32-outlet hood, 33-vent, 4-filter plate, 5-liquid inlet, 6-collecting tank, 7-discharge pipe, 8-valve, 9-recovery pipe, 10-material temporary storage tank, 11-drain pipe. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Example 1

[0024] A closed filter recovery device comprises a tank body 1 and a filter plate 4 arranged in the tank body 1, wherein the side wall of the tank body 1 is provided with a liquid inlet 5, and the top of the filter plate 4 is provided with a discharge port extending to the outside of the tank body 1; the bottom of the filter plate 4 is provided with a collecting trough 6, and one end of the collecting trough 6 is connected to a discharge pipe 7 extending to the outside of the tank body 1; the lower part of the tank body 1 is provided with a recovery pipe 9, and the recovery pipe 9 and the discharge pipe 7 are connected to a material temporary storage tank 10.

[0025] In this embodiment, the discharge pipe 7 and the recovery pipe 9 are connected and enter the material temporary storage tank 10 together. In addition, the two pipes can also be connected to the material temporary storage tank 10 separately, or connected to a material temporary storage tank 10 respectively, so that the recovered materials can be stored and used separately to meet the use requirements of different usage scenarios of the enterprise.

[0026] In this embodiment, a ventilation device 3 is provided on the top of the tank body 1, and the ventilation device 3 includes an air inlet pipe 31 and an air outlet hood 32 connected to the air inlet pipe 31, and a plurality of air vents 33 are provided on the bottom surface of the air outlet hood 32, and one of the air vents 33 is provided corresponding to one of the filter plates 4; compressed air can be sent into the air outlet hood 32 through the air inlet pipe 31, and then discharged from the air vent 33 and directly blown to the filter plate 4, so that the filter cake on the filter plate 4 falls off and the sugar solution is recovered, thereby making the sugar solution recovery more thorough.

[0027] Since part of the sugar solution will adhere to the inner side of the tank body 1, in this embodiment, a heating jacket 2 is circumferentially provided on the outer side of the tank body 1, and an inlet 21 is provided at the bottom of the heating jacket 2, and an outlet 22 is provided at the top of the heating jacket 2; the tank body 1 is heated by the heating jacket 2. Specifically, when in use, a heating source (such as hot air or hot water, etc.) is introduced through the inlet 21 at the bottom of the heating jacket 2 and discharged from the top outlet 22, thereby increasing the flow path and flow time of the heating source in the heating jacket 2, thereby achieving a better heating effect on the tank body 1, helping the sugar solution to melt better and separate from the tank body 1 and fall to the bottom of the tank body 1, thereby facilitating subsequent centralized recovery.

[0028] In this embodiment, a plurality of partitions 23 are arranged laterally between the heating sleeve 2 and the outer side surface of the tank body 1, one end of one of the two adjacent partitions 23 is connected to the heating sleeve 2, and one end of the other partition 23 is connected to the outer side of the tank body 1; more preferably, the free ends of the two adjacent partitions 23 overlap each other in the longitudinal direction, and the covering part does not exceed half of the length of the partition 23; in this way, a plurality of partitions 23 can be used to form a deflection path in the heating sleeve 2, thereby increasing the flow path and flow time of the heating source and achieving a better heating effect on the tank body 1.

[0029] In this embodiment, a sewage pipe 11 is provided at the bottom of the tank body 1 so as to centrally recover and process the sugar solution and impurities contained therein which are deposited at the bottom of the tank body 1 .

[0030] In this embodiment, valves 8 are provided on the discharge pipe 7, the recovery pipe 9 and the sewage pipe 11, so as to facilitate the opening and closing of each pipe, so as to better cooperate with each other and achieve higher efficiency in sugar solution recovery.

[0031] Working principle: After the use of the utility model, the sugar liquid flowing down from the filter plate 4 and the inside will directly fall into the collecting tank 6 at the bottom of the filter plate 4. When the residual sugar liquid inside needs to be cleaned, the valve 8 on the discharge pipe 7 can be opened to discharge the sugar liquid. In this way, the relatively clean sugar liquid on the filter plate 4 can be directly and quickly recovered, and the sugar liquid will not fall to the bottom of the tank body 1 and then be concentrated for recovery, because the sugar liquid at this time may be mixed with some impurities, so that the quality of the recovered sugar liquid is relatively low. For example, the recovery pipe 9 at the lower part of the tank body 1 is used to recover the sugar liquid falling to the bottom of the tank body 1, but there may be impurities. Therefore, it is often necessary to settle for a period of time before recovery, which increases the recovery time to a certain extent. Therefore, the sugar liquid can be directly and quickly recovered first through the upper collection tank 6 and the discharge pipe 7, and the recovery efficiency is higher; then the recovery pipe 9 can be used to recover the sugar liquid falling to the lower part of the tank body 1 again; the sugar liquid recovered by the recovery pipe 9 and the collection tank 6 can be stored in the material temporary storage tank 10 for temporary storage for use or directly sent to the tank body 1.

[0032] The utility model directly recovers the sugar solution on the filter plate 4 by arranging a collection tank 6 at the bottom of the filter plate 4, and uses a recovery pipe 9 to recover the sugar solution at the lower part of the tank body 1, so that the recovery efficiency of the sugar solution is higher, the recovery time is shortened, the recovery quality is improved, and greater economic benefits are brought to the enterprise. At the same time, the problem of high COD of sewage caused by direct discharge is avoided, and the cost of sewage treatment is reduced.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A closed filter recovery device, comprising a tank body and a filter plate arranged in the tank body, wherein the side wall of the tank body is provided with a liquid inlet, and the top of the filter plate is provided with a discharge port extending to the outside of the tank body; characterized in that: A collecting groove is provided at the bottom of the filter plate, and one end of the collecting groove is connected to a discharge pipe extending to the outside of the tank body; A recovery pipe is arranged at the lower part of the tank body, and the recovery pipe is connected with the discharge pipe to form a temporary material storage tank.

2. The closed filter recovery device according to claim 1, characterized in that: The discharge pipe and the recovery pipe are connected to each other and enter the material temporary storage tank together.

3. The closed filter recovery device according to claim 1, characterized in that: A ventilation device is arranged on the top of the tank body, and the ventilation device includes an air inlet pipe and an air outlet hood connected with the air inlet pipe. A plurality of air vents are arranged on the bottom surface of the air outlet hood, and one of the air vents is arranged corresponding to one of the filter plates.

4. The closed filter recovery device according to claim 1, characterized in that: A heating jacket is circumferentially arranged on the outer side of the tank body, an inlet is arranged at the bottom of the heating jacket, and an outlet is arranged at the top of the heating jacket.

5. The closed filter recovery device according to claim 4, characterized in that: A plurality of partitions are arranged laterally between the heating sleeve and the outer side of the tank body, one end of one of two adjacent partitions is connected to the heating sleeve, and one end of the other partition is connected to the outer side of the tank body.

6. The closed filter recovery device according to claim 5, characterized in that: The free ends of two adjacent partitions overlap each other in the longitudinal direction, and the overlapping portion does not exceed half of the length of the partition.

7. The closed filter recovery device according to claim 1, characterized in that: A sewage pipe is arranged at the bottom of the tank body.

8. The closed filter recovery device according to claim 7, characterized in that: The discharge pipe, the recovery pipe and the sewage discharge pipe are all provided with valves.

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