Mechanical sludge dewatering device

Abstract

The utility model relates to a sludge mechanical dewatering device which comprises a main beam, a machine base, an oil cylinder, an electric control cabinet and a hydraulic device are sequentially arranged on one side of the main beam, the output end of the hydraulic device is connected with the oil cylinder in series, and the output end of the oil cylinder is connected to the machine base in a sliding mode and connected with a pressing plate. A squeezed liquid inlet and a squeezed liquid outlet are formed in the two sides of the main beam respectively and are connected to the hollow cavity of the filter plate through squeezed liquid inlet and outlet pipes. According to the sludge dewatering system, industrial waste heat water is guided into the system through the arranged squeezed liquid inlet and squeezed liquid outlet to heat sludge, and meanwhile, the dewatering efficiency is improved through extrusion of the partition plates. And in addition, clean water is introduced from the liquid outlet and washing flange assembly, so that the pipeline can be cleaned.

Description

Technical Field

[0001] The utility model relates to a sludge mechanical dehydration device, which is mainly used for mechanical dehydration of sludge. Background Art

[0002] With the increasing living standards of the people, the national population and economy are growing rapidly. As a result, the annual treatment volume of urban domestic sewage and industrial sewage is increasing year by year, as well as the continuous increase of sludge, the subsequent product of sewage treatment.

[0003] In the process of sewage treatment, if sludge is not treated effectively, it will not only occupy a large amount of space, but also cause serious pollution and health impact on the environment. Therefore, in the process of sewage treatment, appropriate sludge treatment technology must be adopted to dehydrate the sludge and then dispose of it. The existing sludge dehydration devices have the following problems:

[0004] 1. It cannot reasonably utilize industrial waste heat to accelerate the efficiency of sludge dehydration;

[0005] 2. It cannot clean the internal pipelines. After long-term use, a large amount of dirt will remain in the pipelines, affecting the dehydration efficiency. Content of the Utility Model

[0006] The problem to be solved by the utility model is to provide a sludge mechanical dehydration device, including a water washing and feeding port, a thrust plate, a partition plate, a filter plate, a pressing plate, a machine base, an oil cylinder, an electric control cabinet, a hydraulic device, and a main beam; the water washing and feeding port is located in the middle of the thrust plate, and the pretreated sludge is pumped into the water washing and feeding port by a pump to enter the dehydration device and successively fill the space between the partition plate and the filter plate.

[0007] A sludge mechanical dehydration device includes a main beam. On one side of the main beam, there are successively arranged the machine base, the oil cylinder, the electric control cabinet, and the hydraulic device. The output end of the hydraulic device is connected in series with the oil cylinder, and the output end of the oil cylinder is slidably connected to the machine base and is connected with a pressing plate;

[0008] On the other side of the main beam, there is a thrust plate. A plurality of partition plates and filter plates are also slidably connected to the main beam. The plurality of partition plates and filter plates are arranged at intervals in sequence. The pressing plate is in contact connection with the first partition plate, and the thrust plate is in contact connection with the last partition plate;

[0009] On both sides of the main beam, there are respectively provided a pressing liquid inlet and a pressing liquid outlet. The pressing liquid inlet and the pressing liquid outlet are both connected to the hollow cavity of the filter plate through a pressing liquid inlet and outlet pipe.

[0010] Preferably, the thrust plate includes a thrust plate body and a first leg. The thrust plate body is connected to the end of the first leg and is in contact connection with the last partition plate. An inlet flange assembly and a liquid outlet and water washing flange assembly are further provided on the thrust plate body. The inlet flange assembly is connected to a feed pump, and the liquid outlet and water washing flange assembly is connected to a liquid outlet or a water washing pipeline.

[0011] Preferably, the pressing plate includes a pressing plate body and a roller assembly. The pressing plate body is slidably connected to a guide rail through the roller assembly. The guide rail is provided on the main beam, and the pressing plate body is in contact connection with the first partition plate.

[0012] Preferably, the oil cylinder includes an oil cylinder seat body and a second leg. The oil cylinder seat body is connected to the end of the second leg.

[0013] Preferably, the pressed liquid inlet is connected to a pressure pump.

[0014] Preferably, the pressed liquid outlet is connected to a stop valve.

[0015] Preferably, the materials of the multiple partition plates and filter plates are stainless steel.

[0016] The beneficial effects of the present utility model are as follows:

[0017] By providing the pressed liquid inlet and the pressed liquid outlet, the industrial surplus hot water is introduced into the system to heat the sludge. At the same time, through the extrusion of the partition plates, the dehydration efficiency is improved. In addition, by introducing clean water from the liquid outlet and water washing flange assembly, the pipeline can be cleaned. Description of the Drawings

[0018] Figure 1 It is the front view of a sludge mechanical dehydration device disclosed in the embodiment.

[0019] Figure 2 It is the left view of a sludge mechanical dehydration device disclosed in the embodiment.

[0020] Figure 3 It is the schematic diagram of the position of the inlet flange assembly of a sludge mechanical dehydration device disclosed in the embodiment.

[0021] Reference numerals in the drawings: 101: inlet flange assembly; 102: thrust plate; 103: partition plate; 104: filter plate; 105: pressing plate; 106: machine base; 107: oil cylinder; 108: electric control cabinet; 109: main beam; 110: liquid outlet and water washing flange assembly; 201: pressed liquid inlet; 202: pressed liquid outlet; 203: pressed liquid inlet and outlet pipe; 301: hydraulic device. Detailed Embodiments

[0022] The following further describes the data of the present utility model in conjunction with the drawings and embodiments.

[0023] like Figures 1 to 3 As shown, a sludge mechanical dewatering device includes 101: feed flange assembly, 102: thrust plate, 103: partition, 104: filter plate, 105: clamping plate, 106: machine base, 107: oil cylinder, 108: electric control cabinet, 109: main beam, 110: liquid outlet and water washing flange assembly; 201: squeeze liquid inlet, 202: squeeze liquid outlet, 203: squeeze liquid inlet and outlet pipe, 301: hydraulic device.

[0024] The feed flange assembly 101 is located in the middle of the thrust plate 102. The pre-treated sludge is pumped into the feed flange assembly 101 and enters the dewatering device, filling the partition plate 103 and the filter plate 104 in turn.

[0025] The thrust plate 102 is composed of a thrust plate body and a support leg. The thrust plate body mainly bears the pressure of the filter press and supports the filter plate 104. The thrust plate body also has a feed flange assembly 101 and a liquid discharge and water washing flange assembly 110. The feed flange assembly 101 is connected to an external feed pump to feed the material; the liquid discharge and water washing flange assembly 110 is connected to an external liquid discharge pipeline or a water washing pipeline to wash the filter cake after the filtrate is discharged: the liquid discharge and water washing flange assembly 110 is connected to the liquid discharge pipeline when discharging the liquid, and the liquid discharge and water washing flange assembly 110 is connected to the water washing pipeline when washing the liquid.

[0026] The partition plate 103 and the filter plate 104 are distributed in sequence at intervals.

[0027] The clamping plate 105 is composed of a clamping plate body and a roller assembly. The clamping plate body bears the thrust of the oil cylinder. The clamping plate 105 is supported on the beam guide rail by the roller. When clamping, the filter plate 104 is clamped under the action of the clamping force of the oil cylinder. When pulling the plate, the oil cylinder releases pressure and pulls the clamping plate backward to pull the filter plate 104 away from the falling material.

[0028] The booster pump draws the water containing waste heat from the squeeze liquid inlet 201, along the main pipe and squeeze liquid inlet and outlet pipe 203 into the hollow chamber of the filter plate 104. As more liquid is added, the elastic wall plates on both sides of the chamber protrude and squeeze the sludge, and transfer the heat in the water to the sludge. After the sludge is squeezed and heated, the water is separated and flows along the outlet and water washing flange assembly 110. The water in the sludge flows away from 110, and the outlet 202 is the water with industrial waste heat. After releasing the heat and squeezing, it flows out from this outlet and returns to the original industrial water system.

[0029] The hot water can be water containing industrial waste heat, such as steam drain, hot water after heat absorption by a heat exchanger cold source, etc.

[0030] The base 106 is fixedly connected.

[0031] The oil cylinder 107 is mainly composed of an oil cylinder seat body and a support leg. The oil cylinder seat body mainly supports the oil cylinder and bears the tensile force of the side beam on the oil cylinder seat during pressing. The support leg mainly plays a role in supporting the oil cylinder seat body and is welded under the oil cylinder seat body.

[0032] The hydraulic device 109 is of an integrated block design and cooperates with the electrical control system to sequentially complete basic actions such as automatic pressing, automatic pressure holding, automatic pressure compensation, automatic loosening, and automatic stop when advancing and retreating to the in-place position of the oil cylinder.

[0033] After completion, repeat the above steps to enter a new round of sludge mechanical compression cycle.

[0034] When cleaning is required, the feed flange assembly 101 will switch to a water pump, and the water pump will send water into the space and pipelines through which the original sludge and waste liquid passed, and finally discharge it through the liquid outlet and water washing flange assembly 110.

[0035] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, based on the above description, other different forms of changes or variations can be made. It is impossible to list all the implementation manners here. Any obvious changes or variations derived from the technical solutions of the present invention still fall within the protection scope of the present invention.

Claims

1. A sludge mechanical dewatering device, characterized in that, It includes a main beam (109), on one side of the main beam (109), there are successively a machine base (106), an oil cylinder (107), an electric control cabinet (108), and a hydraulic device (301). The output end of the hydraulic device (301) is connected in series with the oil cylinder (107), and the output end of the oil cylinder (107) is slidably connected to the machine base (106) and is connected with a pressing plate (105). On the other side of the main beam (109), there is a thrust plate (102). There are also a plurality of partition plates (103) and filter plates (104) slidably connected to the main beam (109). The plurality of partition plates (103) and filter plates (104) are arranged at intervals in sequence. The pressing plate (105) is in contact connection with the first partition plate (103), and the thrust plate (102) is in contact connection with the last partition plate (103). On both sides of the main beam (109), there are respectively a pressing liquid inlet (201) and a pressing liquid outlet (202). Both the pressing liquid inlet (201) and the pressing liquid outlet (202) are connected to the hollow chamber of the filter plate (104) through a pressing liquid inlet and outlet pipe (203).

2. The sludge mechanical dewatering device according to claim 1, wherein, The thrust plate (102) includes a thrust plate body and a first leg. The thrust plate body is connected to the end of the first leg and is in contact connection with the last partition plate (103). The thrust plate body is also provided with a feed flange assembly (101) and a liquid outlet and water washing flange assembly (110). The feed flange assembly (101) is connected to a feed pump, and the liquid outlet and water washing flange assembly (110) is connected to a liquid outlet or a water washing pipeline.

3. A sludge mechanical dewatering device according to claim 1, characterized in that, The pressing plate (105) includes a pressing plate body and a roller assembly. The pressing plate body is slidably connected to a guide rail through the roller assembly. The guide rail is arranged on the main beam (109), and the pressing plate body is in contact connection with the first partition plate (103).

4. A sludge mechanical dewatering device according to claim 1, characterized in that, The oil cylinder (107) includes an oil cylinder seat body and a second leg. The oil cylinder seat body is connected to the end of the second leg.

5. A sludge mechanical dewatering device according to claim 1, characterized in that, The pressing liquid inlet (201) is connected to a pressure pump.

6. The sludge mechanical dewatering device according to claim 1, wherein, The pressing liquid outlet (202) is connected to a stop valve.

7. A sludge mechanical dewatering device according to claim 1, characterized in that, The plurality of partition plates (103) and filter plates (104) are made of stainless steel.

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