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CN-224226869-U - Front-end pretreatment device for reducing water content of sludge

CN224226869UCN 224226869 UCN224226869 UCN 224226869UCN-224226869-U

Abstract

The utility model belongs to the field of sludge treatment, in particular to a pre-treatment device for reducing the water content of sludge, which comprises a thermal hydrolysis reaction kettle, wherein the top of the thermal hydrolysis reaction kettle is in through connection with a connecting valve, the top of the connecting valve is in through connection with a preheating component, the middle of the bottom of the thermal hydrolysis reaction kettle is in through connection with a crushing component, when the pre-treatment device is used, a solar heat collector continuously passes through a heating medium in a solar heating water tank, the sludge is introduced into the interior of a preheating cylinder through an input pipe, a water pump is started, the heating medium heated in the solar heat collector is pumped into a cavity of the preheating cylinder through an A hose, and the heating medium subjected to heat exchange in the cavity is extruded back into the water tank of the solar heat collector through a return pipe, so that the pre-treatment device can utilize solar energy to perform partial heating in the heating process, and the energy consumption of the device is reduced.

Inventors

  • LIU FENG
  • Yu Congru
  • QIU HUAGANG
  • SUN RONGLIN
  • LI GUOYUN

Assignees

  • 杭州环兴污泥处理有限公司

Dates

Publication Date
20260512
Application Date
20250728

Claims (6)

  1. 1. The prepositive pretreatment device for reducing the water content of sludge is characterized by comprising a thermal hydrolysis reaction kettle (1), wherein the top of the thermal hydrolysis reaction kettle (1) is in through connection with a connecting valve (2), the top of the connecting valve (2) is in through connection with a preheating component (3), and the middle of the bottom of the thermal hydrolysis reaction kettle (1) is in through connection with a crushing component (4); The preheating assembly (3) comprises a preheating cylinder (301) which is connected to the top of the connecting valve (2) in a penetrating way, a return pipe (302) is connected to the edge of one side of the preheating cylinder (301) in a penetrating way, a solar heat collector (303) is connected to one end of the return pipe (302) in a penetrating way, an A hose (304) is connected to the bottom of the solar heat collector (303) in a penetrating way, a water pump (305) is connected to the bottom of the A hose (304) in a penetrating way, a B hose (306) is connected to one end of the water pump (305) in a penetrating way, and the preheating cylinder (301) is connected to one end of the B hose (306) in a penetrating way; The crushing assembly (4) comprises a rotating rod (401) which is rotationally connected with the middle part of the bottom of the thermal hydrolysis reaction kettle (1), connecting rods (402) are rotationally connected to the two ends of the rotating rod (401), cutting blades (403) are sleeved on the surfaces of the connecting rods (402), a transmission rod (404) is fixedly connected to the bottom of the rotating rod (401), and a bottom spline of the transmission rod (404) is connected to the output end of a servo motor (405).
  2. 2. The pre-treatment device for reducing the water content of sludge according to claim 1, wherein the surface of the rotating rod (401) is in through connection with a closed shell (5), and the bottom of the closed shell (5) is fixedly connected with the inner surface of the thermal hydrolysis reaction kettle (1).
  3. 3. The pre-treatment device for reducing the water content of sludge according to claim 1, wherein a motor box (6) is fixedly connected to the bottom of the thermal hydrolysis reaction kettle (1), and a servo motor (405) is fixedly connected to the inner surface of the motor box (6).
  4. 4. The pre-treatment device for reducing the water content of sludge according to claim 1, wherein a frame plate (7) is fixedly connected to the bottom of the solar heat collector (303), and a water pump (305) is fixedly connected to the edge of the top of the frame plate (7).
  5. 5. The pre-treatment device for reducing the water content of sludge, as claimed in claim 4, is characterized in that a bottom plate (8) is fixedly connected to the bottom of the frame plate (7), a supporting frame (9) is fixedly connected to the middle of the top of the bottom plate (8), and a thermal hydrolysis reaction kettle (1) is fixedly connected to the top of the supporting frame (9).
  6. 6. The pretreatment device for reducing the water content of sludge as claimed in claim 1, wherein a cavity for filling a heating medium is arranged between the outer wall and the inner wall of the preheating cylinder (301), and an input pipe (10) is connected to one side of the inner wall in a penetrating manner.

Description

Front-end pretreatment device for reducing water content of sludge Technical Field The utility model relates to the field of sludge treatment, in particular to a front pretreatment device for reducing the water content of sludge. Background The sludge treatment refers to the technical process of carrying out reduction, stabilization, innocuity and recycling treatment on the water-containing solid waste generated in the sewage treatment process, and the pre-treatment device for reducing the water content of the sludge refers to pretreatment equipment or process for improving the dehydration performance of the sludge and reducing the water content before the sludge is dehydrated or dried. The device changes the sludge property through physical, chemical or biological methods, thereby improving the subsequent dehydration efficiency and reducing the energy consumption and the cost. In the prior art, the dehydration performance of the sludge is improved by carrying out pretreatment on the sludge before dehydrating the water content of the sludge, bound water in the sludge can be released at high temperature and high pressure through thermal hydrolysis, the fluidity of the sludge is improved, the existing pretreatment device is inconvenient to utilize solar energy to carry out partial heating in the heating process, the energy consumption of the device is increased, meanwhile, in the pretreatment process, caking phenomenon in the sludge possibly exists to influence heat transfer unevenly, the existing pretreatment device is inconvenient to crush and caking in the pretreatment process to expose the sludge in the caking, and the pretreatment effect of the device is reduced. Disclosure of utility model In order to overcome the defects of the prior art and solve the problems that partial heating is inconvenient to carry out by utilizing solar energy in the heating process and crushing and caking are inconvenient in the pretreatment process, the utility model provides a pre-treatment device for reducing the water content of sludge. The utility model solves the technical problems by adopting the technical scheme that the pre-treatment device for reducing the water content of the sludge comprises a thermal hydrolysis reaction kettle, wherein the top of the thermal hydrolysis reaction kettle is connected with a connecting valve in a through way, the top of the connecting valve is connected with a preheating component in a through way, and the middle of the bottom of the thermal hydrolysis reaction kettle is connected with a crushing component in a through way; The preheating assembly comprises a preheating cylinder which is connected with the top of the connecting valve in a penetrating way, a return pipe is connected with the edge of one side of the preheating cylinder in a penetrating way, one end of the return pipe is connected with a solar heat collector in a penetrating way, the bottom of the solar heat collector is connected with an A hose in a penetrating way, the bottom of the A hose is connected with a water pump in a penetrating way, one end of the water pump is connected with a B hose in a penetrating way, and one end of the B hose is connected with the preheating cylinder in a penetrating way; The crushing assembly comprises a rotating rod rotationally connected with the middle part of the bottom of the thermal hydrolysis reaction kettle, connecting rods are rotationally connected to the two ends of the rotating rod, cutting pieces are sleeved on the surfaces of the connecting rods, a transmission rod is fixedly connected to the bottom of the rotating rod, and a bottom spline of the transmission rod is connected to the output end of the servo motor; Preferably, the surface of the rotating rod is connected with a closed shell in a penetrating way, and the bottom of the closed shell is fixedly connected with the inner surface of the thermal hydrolysis reaction kettle. Preferably, the bottom of the thermal hydrolysis reaction kettle is fixedly connected with a motor box, and the inner surface of the motor box is fixedly connected with a servo motor. Preferably, the bottom of the solar heat collector is fixedly connected with a frame plate, and the edge of the top of the frame plate is fixedly connected with a water pump. Preferably, the bottom of the frame plate is fixedly connected with a bottom plate, the middle part at the top of the bottom plate is fixedly connected with a support frame, and the top of the support frame is fixedly connected with a thermal hydrolysis reaction kettle. Preferably, a cavity for filling the heating medium is arranged between the outer wall and the inner wall of the preheating cylinder, and one side of the inner wall is connected with an input pipe in a penetrating way. The utility model has the advantages that: 1. according to the pretreatment device, through the structural arrangement of the preheating component, when the pretreatment device is used, the solar heat collector con