High-pressure diaphragm low-temperature drying plate-and-frame filter press

Abstract

The utility model relates to a high-pressure diaphragm low-temperature drying plate-and-frame filter press which comprises a base, a framework mechanism is fixed on the base, a filtering mechanism and a pressing mechanism are arranged on the framework mechanism, and the filtering mechanism is composed of a filtering plate assembly and a diaphragm plate assembly which are alternately arranged in the framework mechanism and connected to a rail in a sliding mode. And a plurality of layers of filtering media with different precisions, which are composed of a layer of coarse filter screen, a layer of medium filter screen and a layer of fine filter screen, are arranged in a filter plate frame of the filter plate assembly. The panel is fixed to the base through an organic glass fiber reinforced plastic grating, a heating pipeline is arranged in the diaphragm plate assembly and connected with the heating mechanism on the framework mechanism, the liquid inlet pipe is communicated with the filtering mechanism, and a pressure sensor on the diaphragm plate assembly is connected with the control system. According to the filter press, the filtering effect is improved through multiple layers of filtering media, harmful gas is prevented from being generated through low-temperature heating and drying, intelligent control is achieved through a pressure sensor, sludge can be efficiently dewatered and dried in an energy-saving and environment-friendly mode, and the filter press is widely applied to the field of sludge treatment.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sludge treatment technical field, mainly applied to municipal sewage treatment plant sludge dewatering and dry, and all kinds of industrial wastewater treatment sludge dewatering operation scene of depth, relate to high pressure diaphragm low temperature dry board frame filter pressing technology in sludge treatment technology, specifically a kind of high pressure diaphragm low temperature dry board frame filter press, by the filter press, it aims at guaranteeing efficient dewatering dry effect, reduce energy consumption and reduce the influence to environment simultaneously, it is applicable to the occasion of the sludge dehydration and dry processing of various needs. BACKGROUND

[0002] Sludge contains numerous complex components, including a large amount of water, and its water content is usually as high as 70%-90%. Traditional sludge treatment methods have many drawbacks when faced with such a large amount of sludge with high water content. The early natural drying method not only occupies a large area, but is also severely restricted by weather conditions, with a long processing period, making it difficult to meet the efficient needs of modern sludge treatment. Although the conventional plate and frame filter press can achieve sludge dewatering to some extent, due to its technical limitations, the water content of the dewatered sludge is still relatively high, generally only reduced to about 60%-70%, which still causes many inconveniences for subsequent sludge transportation, landfill or resource utilization, such as causing excessive leachate production in the landfill, which poses a potential threat to the soil and groundwater environment; in terms of resource utilization, high water content also limits the efficiency of further processing and conversion.

[0003] Some high-temperature drying equipment has appeared in recent years, which can significantly reduce the water content of sludge to a low level, but it faces the problem of high energy consumption. In the face of increasing energy shortages, this undoubtedly increases the cost of sludge treatment. At the same time, harmful gases such as dioxins are easily produced during high-temperature drying, which can cause serious air pollution and a series of environmental health problems if not properly treated.

[0004] The existing plate and frame filter press is not convenient to operate at high places, and the filtering effect is not good, and the dewatering effect and drying function need to be further improved, therefore, it is of great significance to develop a new type of high pressure diaphragm low temperature dry board frame filter press. SUMMARY

[0005] The utility model aims at providing a kind of high pressure diaphragm low temperature dry board frame filter press, to solve the problems that the existing plate and frame filter press is not convenient to operate at high places, and the filtering effect is not good, and the dewatering effect and drying function need to be further improved.

[0006] To solve the above problems, the utility model provides a kind of high pressure diaphragm low temperature dry board frame filter press, comprising:

[0007] A base is stably installed on the ground; a framework is fixedly installed on the base;

[0008] A machine tank is installed at the bottom of the framework;

[0009] A pressing mechanism is located above the framework;

[0010] A filter mechanism comprising a filter plate assembly and a diaphragm plate assembly is installed on the framework;

[0011] A panel is fixedly installed on the base;

[0012] A heating pipeline is arranged inside the diaphragm plate assembly;

[0013] A liquid inlet pipe is connected to the filter mechanism;

[0014] A track is located on the framework.

[0015] Further, the panel is a glass steel grid.

[0016] Further, the pressing mechanism is driven by hydraulic pressure.

[0017] Further, the filter plate assembly comprises a filter plate frame, and a filter medium is arranged in the filter plate frame.

[0018] Further, the filter plate assembly and the diaphragm plate assembly are alternately arranged in the framework.

[0019] Further, a heating mechanism is arranged on the framework and connected to the heating pipeline.

[0020] Further, the filter plate in the filter plate mechanism is composed of multiple layers of filter media with different precision.

[0021] Further, the filter mechanism is slidingly connected to the track.

[0022] Further, a pressure sensor is arranged on the diaphragm plate assembly and connected to a control system.

[0023] Further, the filter medium comprises a coarse filter screen, a medium filter screen and a fine filter screen.

[0024] The utility model has the following beneficial effects:

[0025] The filter plate assembly and the diaphragm plate assembly are alternately arranged in the skeleton mechanism in the filtering mechanism, the filter plate is composed of multiple layers of filtering media with different precision, including coarse, medium and fine filter screens, can perform grading and fine filtering on sludge, effectively intercepts impurities and particles with different particle sizes, greatly improves the filtering efficiency and quality, and significantly reduces the moisture content of the dewatered sludge.

[0026] The compression mechanism is driven by hydraulic pressure, the compression force can be accurately controlled, the sealing performance in the filtering process is guaranteed, different sludge characteristics and treatment requirements are adapted, the consistency and stability of the dewatering effect are improved. The glass fiber reinforced plastic grating panel is not only solid and durable, but also can effectively reduce the occurrence of slipping accidents and improve the safety of the place. The sliding connection design of the filtering mechanism and the track facilitates the movement of the filtering mechanism during compression, loosening and other operations, makes the equipment run more smoothly, and improves the overall work efficiency. The pressure sensor on the diaphragm plate assembly is connected with the control system, can monitor the pressure in real time and automatically adjust, realizes intelligent operation, and further improves the reliability of the equipment and the accuracy of the treatment effect.

[0027] (3) The base is stably installed on the ground, provides a solid foundation for the whole equipment, facilitates the operation of the machine at a high place, effectively bears the stress and load generated during the operation of each component in combination with the solid skeleton mechanism, ensures the structural stability of the equipment during long-term operation, reduces the risk of failure caused by vibration or uneven stress, prolongs the service life of the equipment, and reduces the maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating creative labor.

[0029] Figure 1 It is the overall schematic view of the embodiment of the utility model;

[0030] Figure 2 It is the front view of the embodiment of the utility model;

[0031] Figure 3 It is the top view of the embodiment of the utility model;

[0032] Figure 4 The skeleton mechanism of the embodiment of the utility model;

[0033] Figure 5 The base of the embodiment of the utility model;

[0034] Figure 6 The pressing mechanism of the embodiment of the utility model.

[0035] Mark explanation:

[0036] 1-base; 2-machine groove; 3-pressing mechanism; 4-filter mechanism; 5-panel; 6-skeleton mechanism; 7-heating pipeline; 8-liquid inlet pipe; 9-track; 10-heating mechanism. Specific implementation

[0037] In the following description, a large number of specific details are given in order to provide a more thorough understanding of the utility model. However, it is obvious for those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0038] In order to thoroughly understand the utility model, detailed steps and detailed structures will be proposed in the following description in order to explain the technical scheme of the utility model. The preferred embodiment of the utility model is described as follows, however, in addition to these detailed descriptions, the utility model can also have other implementation manners.

[0039] As Figures 1 to 4In an embodiment of the high-pressure diaphragm low-temperature drying plate-and-frame filter machine shown in the utility model, the high-pressure diaphragm low-temperature drying plate-and-frame filter machine comprises: a base 1 stably installed on the ground as the basic support of the whole filter machine, bearing the weight of the components above, guaranteeing the overall stable placement of the equipment; a framework mechanism 6 fixedly installed on the base 1 as the overall frame, welded from high-quality steel material, having the characteristics of firmness, durability and structural stability, the connection between the various rod members thereof being precisely designed and processed to ensure the rigidity and strength of the overall frame, a plurality of installation positions being accurately reserved on the framework mechanism 6, these positions being adapted to the connection interfaces of other components, so that the components such as the tank 2, the pressing mechanism 3 and the filtering mechanism 4 can be accurately and correctly installed at the predetermined positions, ensuring the structural stability and accurate relative position between the components; the tank 2 is installed at the bottom of the framework mechanism 6 and is used for containing the water separated from the sludge under the action of pressure, the water seeping through the filter medium of the filter plate and being discharged into the tank, the material of the tank 2 being selected from corrosion-resistant metal or plastic, which can effectively resist the corrosion of corrosive substances possibly contained in the sludge water and prolong the service life thereof, a special drainage pipeline being provided at the bottom of the tank 2 and being connected in communication with the external drainage system to timely discharge the collected water and avoid the accumulation of water affecting the normal operation of the equipment; the pressing mechanism 3 is located above the framework mechanism 6 and is hydraulically driven, the hydraulic driving mode being capable of providing strong and stable pressure output and accurately applying appropriate pressure to the filtering mechanism 4 according to the properties of the sludge and the processing requirements. When the pressing mechanism 3 is started, the hydraulic cylinder pushes the pressing plate to move, so that the filter plate assembly and the diaphragm plate assembly in the filtering mechanism 4 are tightly attached to each other, meeting the requirements for sealing and pressure in the sludge dewatering process; the filtering mechanism 4 comprises a filter plate assembly and a diaphragm plate assembly and is installed on the framework mechanism 6; and the filtering mechanism 4 is slidingly connected to the track 9 to facilitate movement during operation. The filter plate frame in the filter plate assembly is provided with filter medium, the filter plate in the filter plate mechanism is composed of multiple layers of filter medium with different precision, specifically comprising a coarse filter screen, a medium filter screen and a fine filter screen, to achieve fine filtration of the sludge and improve the dewatering effect. The filter plate assembly and the diaphragm plate assembly are alternately arranged in the framework mechanism 6 and cooperatively complete the filtration and subsequent processing of the sludge.

[0040] The panel 5 is fixedly installed on the base and is a glass steel grid with good anti-skid effect, which can effectively reduce the occurrence of slipping accidents and improve the safety of the place. The grid design on the surface is beneficial to ventilation and drainage, and good performance can be maintained even in a humid working environment. The operating personnel can conveniently reach various parts of the equipment through the panel 5 to perform daily maintenance, inspection and operation control; the heating pipeline 7 is arranged inside the diaphragm plate assembly and cooperates with the heating mechanism 10 on the framework mechanism 6, and the heating mechanism 10 is connected with the heating pipeline 7. When the heating mechanism 10 is started, heat is uniformly transmitted to the diaphragm plate assembly through the heating pipeline 7, and then low-temperature heating is performed on the sludge clamped between the filter plate assembly and the diaphragm plate assembly. This low-temperature drying method can effectively evaporate the water in the sludge and will not damage the beneficial components in the sludge or produce harmful gases due to high temperature; the liquid inlet pipe 8 is a channel for the sludge to enter the filter mechanism 4 and is communicated with the filter mechanism. The pipe diameter and flow rate are reasonably designed according to the treatment capacity of the equipment, which can quickly and stably transport the sludge to be treated into various chambers inside the filter mechanism 4. The liquid inlet pipe 8 is usually equipped with valve and flowmeter control components, and the operating personnel can accurately control the sludge feeding amount and feeding speed through these components, start the sludge dewatering and drying process, and flexibly adjust according to the actual situation; the track 9 is located on the framework mechanism and provides guidance and support for the movement of the filter mechanism 4, ensuring that the filter mechanism 4 can smoothly slide along the track 9 during operations such as compression and loosening, thereby ensuring the smoothness and reliability of the equipment operation. The track 9 can be made of high-strength metal material, and the surface is specially treated to have a low friction coefficient, which ensures that the filter mechanism 4 can smoothly slide along the track 9 during compression and loosening operations.

[0041] Working process: in actual operation, first, the sludge to be treated is transported into various chambers of the filter mechanism 4 through the liquid inlet pipe 8. Then, the compression mechanism 3 is started to apply pressure to the filter mechanism 4, at which time the sludge begins to be preliminarily dewatered under the action of the pressure, and the water is seeped out of the filter medium in the filter plate assembly and discharged into the tank 2. Then, the heating mechanism 10 is started, and heat is transmitted to the diaphragm plate assembly through the heating pipeline 7 to heat the sludge at low temperature. Under the combined action of heating and pressure, the water in the sludge is further evaporated and discharged. During the whole process, the operating personnel can observe the running condition of the equipment inside on the panel 5. When the sludge dewatering and drying reach the set requirements, the heating mechanism 10 and the compression mechanism 3 are stopped, the filter mechanism 4 is loosened, and the dried sludge is taken out for subsequent disposal.

[0042] The preferred embodiments of the present application are described above. It should be understood that the present application is not limited to the specific embodiments described above, nor is it limited to the high-pressure diaphragm low-temperature drying plate-and-frame filter press. Equipment and structures not described in detail should be understood as being implemented in a common manner in the art; any person skilled in the art, without departing from the scope of the technical scheme of the present application, can make many possible changes and modifications to the technical scheme of the present application by using the disclosed technical content, or modify equivalent embodiments of equivalent changes, which does not affect the essential content of the present application. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, without departing from the content of the technical scheme of the present application, still belongs to the scope of protection of the technical scheme of the present application.

Claims

1. A high pressure diaphragm low temperature dewatering plate and frame filter press, characterized in that, The utility model relates to a kind of filter equipment, including: Base (1), stably installed on ground; Skeleton mechanism (6), fixedly installed on the base (1); Machine groove (2), installed at the bottom of the skeleton mechanism (6); Pressing mechanism (3), above the skeleton mechanism (6); Filter mechanism (4), including filter plate assembly and diaphragm plate assembly, installed on the skeleton mechanism (6); Panel (5), fixedly installed on the base (1); Heating pipeline (7), set in the diaphragm plate assembly; Liquid inlet pipe (8), in communication with the filter mechanism (4); Track (9), on the skeleton mechanism (6).

2. The high pressure diaphragm low temperature belt press filter of claim 1, wherein: The panel (5) is glass steel grid.

3. The high pressure diaphragm low temperature belt press filter of claim 1, wherein: The pressing mechanism (3) is driven by hydraulic pressure.

4. The high pressure diaphragm low temperature belt press filter of claim 1, wherein: The filter plate assembly includes filter plate frame, and filter medium is arranged in the filter plate frame.

5. The high pressure diaphragm low temperature belt press filter of claim 1, wherein: The filter plate assembly and the diaphragm plate assembly are alternately arranged in the skeleton mechanism (6).

6. The high pressure diaphragm low temperature belt press filter of claim 1, wherein: Heating mechanism (10) is arranged on the skeleton mechanism (6), and the heating mechanism (10) is connected with the heating pipeline (7).

7. The high pressure diaphragm low temperature belt press filter of claim 1, wherein: The filter plate in the filter mechanism (4) is composed of multiple layers of filter medium with different precision.

8. The high pressure diaphragm low temperature belt press filter of claim 1, wherein: The filter mechanism (4) is slidingly connected on the track (9).

9. The high pressure diaphragm low temperature belt press filter of claim 1, wherein: Pressure sensor is arranged on the diaphragm plate assembly, and the pressure sensor is connected with control system.

10. The high pressure diaphragm low temperature belt press filter of claim 4 or 7, wherein: The filter medium includes a coarse filter screen, a medium filter screen and a fine filter screen.

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