CN-224226862-U - Sludge press filtration dewatering device

CN224226862UCN 224226862 UCN224226862 UCN 224226862UCN-224226862-U

Abstract

The utility model discloses a sludge press filtration dehydration device, and relates to the technical field of sludge dehydration equipment. The sludge compression dehydration device comprises a homogenization tank, a squeezing water tank, a back-blowing air storage tank, a vacuum pump, a hot air unit and a double-diaphragm filter press, wherein the homogenization tank is connected with the double-diaphragm filter press through a filter press feed pump, the squeezing water tank is connected with the double-diaphragm filter press through a squeezing pipeline, the double-diaphragm filter press is connected with a back-blowing pipeline, a three-way pneumatic valve is arranged on the back-blowing pipeline, a compressed air pipeline is arranged between the back-blowing air storage tank and the three-way pneumatic valve, the vacuum pump is connected with the double-diaphragm filter press through a vacuum pipeline, and the hot air unit is connected with the double-diaphragm filter press through a hot air outlet pipeline. The utility model provides a sludge press filtration dehydration device, which is provided with a hot air unit and a vacuum pump, and the water content of sludge is further reduced by means of contact between hot air and press-filtered mud cakes after press filtration of a double-diaphragm press filter.

Inventors

XIONG JUN
ZHUANG CHUXIONG
Zhou Teyao
SHEN YONGSHENG
GAO BIN
MA YUEXIANG

Assignees

深圳包清天环保有限公司

Dates

Publication Date: 20260512
Application Date: 20250520

Claims (10)

1. The sludge press filtration dehydration device is characterized by comprising a homogenizing tank, a squeezing water tank, a back-blowing air storage tank, a vacuum pump, a hot air unit and a double-diaphragm press filter, wherein the homogenizing tank is connected with the double-diaphragm press filter through a press filter feeding pump, the squeezing water tank is connected with the double-diaphragm press filter through a squeezing pipeline, the double-diaphragm press filter is connected with a back-blowing pipeline, a three-way pneumatic valve is arranged on the back-blowing pipeline, a compressed air pipeline is arranged between the back-blowing air storage tank and the three-way pneumatic valve, the vacuum pump is connected with the double-diaphragm press filter through a vacuum pipeline, and the hot air unit is connected with the double-diaphragm press filter through a hot air outlet pipeline.
2. The sludge press filtration dehydration device according to claim 1, wherein the double-diaphragm press filter is connected with a filtrate discharge pipeline, and a filtrate discharge pneumatic valve is arranged on the filtrate discharge pipeline.
3. The sludge press filtration dehydration device according to claim 2, wherein a sludge inlet pump sludge inlet pneumatic valve is arranged between the homogenization tank and the filter press feed pump, a filter press sludge inlet pipeline is arranged between the double-diaphragm filter press and the filter press feed pump, and a filter press sludge inlet pneumatic valve is arranged on the filter press sludge inlet pipeline.
4. The sludge press filtration dehydration device according to claim 3, wherein the sludge inlet pipeline of the press filter is also connected with a back-blowing return pipeline, and the back-blowing return pipeline is provided with a sludge return pneumatic valve.
5. The sludge press filtration dehydration device according to claim 4, wherein the press pipeline is provided with a press pump and a press water inlet pneumatic valve in sequence.
6. The sludge press filtration dehydration device of claim 5 wherein the hot air outlet pipeline is provided with a hot air outlet pneumatic valve of a hot air machine set and a hot air inlet valve of a press filter in sequence, and a negative pressure tank is arranged between the vacuum pump and the vacuum pipeline.
7. The sludge press filtration dehydration device of claim 6 further comprising a PLC control module, wherein the PLC control module is connected to the double membrane press filter.
8. The sludge press filtration dewatering device according to claim 7, wherein the press water tank is further connected with a press water return pipeline, the press water return pipeline is provided with a press water return pneumatic valve, and the press water return pneumatic valve is arranged between the press water tank and the press water inlet pneumatic valve.
9. The sludge press filtration dehydration device of claim 8 further comprising an air compressor, said air compressor being connected to a blowback air reservoir.
10. The sludge press dewatering device of claim 9, further comprising an instrument air reservoir connected between the compressed air line and the blowback air reservoir.

Description

Sludge press filtration dewatering device Technical Field The utility model relates to the technical field of sludge dewatering equipment, in particular to a sludge press filtration dewatering device. Background The high water content is one of main factors limiting the treatment efficiency of sludge treatment, a series of standard specifications of sludge transportation, pyrolysis, incineration and land utilization of urban sewage treatment plants make specific technical requirements on the water content, and dehydration is a common key technical link in various treatment routes of sludge. However, the sludge belongs to a heterogeneous system with high organic-inorganic hybrid, presents stable colloidal floccule state, is extremely difficult in solid-liquid separation, and is an important guarantee for improving the dehydration performance of the sludge and effectively realizing the solid-liquid separation. In industries such as sludge treatment, a chemical agent conditioning mode is commonly used for conditioning sludge, microbial cells in the sludge are broken, water in the cells is released to form free water, so that the conditioned sludge enters a membrane filter press through a feed pump, a certain feed pressure is applied to the sludge through feeding in the feeding process, most of water in the sludge is extruded out, the sludge in a filter pressing cavity is further extruded through a press pump after the feeding is completed, water in the sludge is extruded out, and finally the water content of the sludge is reduced. However, the existing sludge dewatering technology mainly has the following defects that 1, the water content of sludge cannot be further reduced only by a sludge conditioning, modifying and pressure filtering mode, and the requirement of low water content of a mud cake cannot be met, 2, because the filter plate of the filter press contains retained water, the retained water further falls into a mud cake conveying device to be mixed with the mud cake in the plate opening process, and the water content of the mud cake is further increased. Disclosure of utility model In order to solve the technical problems, the utility model provides a sludge press filtration dehydration device. The utility model aims at realizing the following technical scheme: the utility model provides a mud filter-pressing dewatering device, including homogenization pond, squeeze the water tank, blowback gas holder, vacuum pump, hot-blast unit and double-diaphragm filter press, homogenization pond pass through the filter press feed pump and connect double-diaphragm filter press, squeeze the water tank and pass through and squeeze the pipeline and connect double-diaphragm filter press, double-diaphragm filter press be connected with the blowback pipeline, be equipped with three-way pneumatic valve on the blowback pipeline, be equipped with the compressed air pipeline between blowback gas holder and the three-way pneumatic valve, the vacuum pump pass through the vacuum pipeline and connect double-diaphragm filter press, the hot-blast unit pass through hot-blast play air line and connect double-diaphragm filter press. Preferably, the homogenizing tank is connected with a conditioned sludge pipeline. Preferably, the double-diaphragm filter press is connected with a sewage treatment system through a pipeline. Further, the double-diaphragm filter press is connected with a filtrate discharge pipeline, and a filtrate discharge pneumatic valve is arranged on the filtrate discharge pipeline. Furthermore, a mud inlet pump mud inlet pneumatic valve is arranged between the homogenizing pool and the filter press feeding pump, a filter press mud inlet pipeline is arranged between the double-diaphragm filter press and the filter press feeding pump, and a filter press mud inlet pneumatic valve is arranged on the filter press mud inlet pipeline. Furthermore, the mud inlet pipeline of the filter press is also connected with a back-blowing return pipeline, and the back-blowing return pipeline is provided with a mud return pneumatic valve. Further, the squeezing pipeline is sequentially provided with a squeezing pump and a squeezing water inlet pneumatic valve. Furthermore, the hot air outlet pipeline is sequentially provided with an air outlet pneumatic valve of the hot air unit and a hot air inlet valve of the filter press, and a negative pressure tank is arranged between the vacuum pump and the vacuum pipeline. Further, the sludge press filtration dehydration device also comprises a PLC control module, and the PLC control module is connected with the double-diaphragm press filter. Further, the squeezing water tank is also connected with a squeezing water return pipeline, a squeezing water return pneumatic valve is arranged on the squeezing water return pipeline, and the squeezing water return pneumatic valve is arranged between the squeezing water tank and the squeezing water inlet pneumatic valve. Further, the sludge press filtra