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CN-224212568-U - Sludge low-temperature drying mechanism

CN224212568UCN 224212568 UCN224212568 UCN 224212568UCN-224212568-U

Abstract

The utility model relates to a sludge low-temperature drying mechanism which comprises a box body, a conveying net belt, a dust filtering bag, a static pressure box, an exhaust fan and an electric heater, wherein a group of driving roller assemblies, a plurality of groups of driven roller assemblies and a group of tensioning roller assemblies are arranged on the box body. The device has the beneficial effects that the conveying mesh belt is tensioned in the box body by the cooperation of the driving roller assembly, the driven roller assembly and the tensioning roller assembly, the middle part of the conveying mesh belt is guided by the driven roller assembly to form a plurality of Z-shaped mud turning structures, when the mud meets the mud turning structures on the conveying mesh belt, the mud falls onto the conveying mesh belt below from the conveying mesh belt above, and the phenomenon of turning and splitting of the mud occurs in the falling process, so that the original form is changed, and the even heating of the mud is realized.

Inventors

  • HUANG ZHIYANG
  • LI HONGJUN

Assignees

  • 江苏博一环保科技有限公司

Dates

Publication Date
20260508
Application Date
20250520

Claims (9)

  1. 1. A sludge low-temperature drying mechanism, characterized by comprising: the box body is provided with a group of driving roller assemblies, a plurality of groups of driven roller assemblies and a group of tensioning roller assemblies; The conveying net belt is tensioned in a box body in a matched manner by a driving roller assembly, a driven roller assembly and a tensioning roller assembly, and the middle part of the conveying net belt is guided by the driven roller assembly to form a plurality of Z-shaped mud turning structures; the dust filtering bag is arranged at the rear part of the box body and is arranged in the air extraction groove; The static pressure box is arranged on the inner side of the front part of the box body, and the air outlet of the static pressure box faces the rear part of the box body; The air inlet connector of the exhaust fan is communicated with the air outlet pipe at the bottom of the air exhaust groove through a first pipeline, and the air outlet connector of the exhaust fan is communicated with the air inlet pipe of the static pressure box through a second pipeline; the electric heater is arranged at the air outlet of the static pressure box.
  2. 2. The sludge low-temperature drying mechanism according to claim 1, wherein a feed hopper is arranged at the top end of the front part of the box body, a feed opening of the feed hopper faces to the conveying mesh belt, and the width of the feed hopper is smaller than that of the conveying mesh belt.
  3. 3. The low-temperature sludge drying mechanism according to claim 1, wherein a dry sludge outlet and a wet sludge outlet are arranged at the bottom of the box body, the dry sludge outlet is positioned below the discharging end of the conveying mesh belt, and the wet sludge outlet is positioned in front of the dry sludge outlet.
  4. 4. The low-temperature sludge drying mechanism according to claim 1, wherein the bottom of the box body is provided with a wet sludge guide plate inclined downwards from front to back and a dry sludge guide plate inclined downwards from front to back, the rear end of the wet sludge guide plate is connected with the wet sludge outlet, and the rear end of the dry sludge guide plate is connected with the dry sludge outlet.
  5. 5. The low-temperature sludge drying mechanism according to claim 1, wherein a plurality of T-shaped frames which are uniformly distributed are arranged in the box body, a herringbone guide plate is arranged on the T-shaped frames, and the guide plate is positioned above the lower section of the conveying mesh belt.
  6. 6. The sludge low-temperature drying mechanism of claim 1, wherein the conveying mesh belt comprises a rubber rim, a stainless steel mesh belt layer and a filter cloth layer, two sides of the stainless steel mesh belt layer are fixedly connected in the rubber rim respectively, and the filter cloth layer is arranged on the outer surface of the stainless steel mesh belt layer.
  7. 7. The sludge cryogenic drying mechanism of claim 1, wherein the driving roller assembly comprises two first bearing seats, two first ball bearings and a driving roller, the first bearing seats are arranged on the outer side of the box body through bolts, one first ball bearing is arranged in each first bearing seat, and two ends of the driving roller are respectively sleeved in inner rings of the two first ball bearings.
  8. 8. The sludge cryogenic drying mechanism of claim 1, wherein the driven roller assembly comprises two second bearing seats, two second ball bearings and a driven roller, the second bearing seats are mounted on the outer side of the box body through bolts, one second ball bearing is mounted in each second bearing seat, and two ends of the driven roller are respectively sleeved in inner rings of the two second ball bearings.
  9. 9. The sludge low-temperature drying mechanism of claim 1, wherein the tensioning roller assembly comprises two pairs of sliding rails, two sliding blocks, two third ball bearings, a tensioning roller, a supporting block and a compression spring, the sliding rails are arranged on the outer sides of a box body through bolts, one sliding block is slidably arranged in each pair of sliding rails, a bearing mounting groove is formed in the center of each sliding block, each bearing mounting groove is internally provided with one third ball bearing, two ends of the tensioning roller are respectively sleeved in inner rings of the two third ball bearings, the supporting block is arranged on the sliding rails through bolts, the compression spring is clamped between the supporting block and the sliding blocks, strip-shaped holes for the tensioning roller to pass through are formed in the side faces of the box body between each pair of sliding rails, and baffle plates for shielding the strip-shaped holes are respectively arranged on the front side and the rear side of each sliding block.

Description

Sludge low-temperature drying mechanism Technical Field The utility model relates to the field of sludge treatment, in particular to a sludge low-temperature drying mechanism. Background In order to reduce the occupation of land by filling up the sludge and realize the utilization of sludge resources, a drying device is adopted to dry the sludge and then transport the sludge to a planting soil processing factory to be processed into planting soil. At present, a belt type hot air dryer is commonly adopted in the sludge drying industry in China, the patent of application number 202010828648.3 discloses a multi-stage low-temperature sludge drying device and method for coupling internal and external heat transfer and mass transfer, the sludge drying process is divided into four stages according to the low-temperature sludge drying dynamics characteristics, and a tempering section is added between a first sludge slowing-down drying section and a second sludge slowing-down drying section according to the sludge moisture content in different stages and the reasonable distribution of air quantity and temperature of the drying characteristics, so that the heat on the surface and the internal of the sludge in the drying process is homogenized, the internal and external moisture migration rates are matched, the energy is saved, and the drying efficiency is improved. However, the sludge is in a relatively static state on the conveying mesh belt, so that the sludge cannot be overturned to be heated uniformly. Disclosure of utility model The utility model aims to overcome the problems in the prior art and provides a sludge low-temperature drying mechanism. In order to achieve the technical purpose and the technical effect, the utility model is realized by the following technical scheme: A sludge low temperature drying mechanism comprising: the box body is provided with a group of driving roller assemblies, a plurality of groups of driven roller assemblies and a group of tensioning roller assemblies; The conveying net belt is tensioned in a box body in a matched manner by a driving roller assembly, a driven roller assembly and a tensioning roller assembly, and the middle part of the conveying net belt is guided by the driven roller assembly to form a plurality of Z-shaped mud turning structures; the dust filtering bag is arranged at the rear part of the box body and is arranged in the air extraction groove; The static pressure box is arranged on the inner side of the front part of the box body, and the air outlet of the static pressure box faces the rear part of the box body; The air inlet connector of the exhaust fan is communicated with the air outlet pipe at the bottom of the air exhaust groove through a first pipeline, and the air outlet connector of the exhaust fan is communicated with the air inlet pipe of the static pressure box through a second pipeline; the electric heater is arranged at the air outlet of the static pressure box. The front top of the box body is provided with a feeding hopper, a feeding opening of the feeding hopper faces to the conveying mesh belt, and the width of the feeding hopper is smaller than that of the conveying mesh belt. The bottom of the box body is provided with a dry mud outlet and a wet mud outlet, the dry mud outlet is positioned below the discharging end of the conveying net belt, and the wet mud outlet is positioned in front of the dry mud outlet. The bottom of the box body is provided with a wet mud guide plate inclined downwards from front to back and a dry mud guide plate inclined downwards from front to back, the rear end of the wet mud guide plate is connected with a wet mud outlet, and the rear end of the dry mud guide plate is connected with the dry mud outlet. The box body is internally provided with a plurality of T-shaped frames which are uniformly distributed, the T-shaped frames are provided with a herringbone guide plate, and the guide plate is positioned above the lower section of the conveying mesh belt. The conveying net belt comprises a rubber rim, a stainless steel net belt layer and a filter cloth layer, wherein two sides of the stainless steel net belt layer are fixedly connected in the rubber rim respectively, and the filter cloth layer is arranged on the outer surface of the stainless steel net belt layer. The driving roller assembly comprises two first bearing seats, two first ball bearings and a driving roller, wherein the first bearing seats are arranged on the outer side of the box body through bolts, each first bearing seat is internally provided with one first ball bearing, and two ends of the driving roller are respectively sleeved in inner rings of the two first ball bearings. The driven roller assembly comprises two second bearings, two second ball bearings and a driven roller, wherein the second bearings are arranged on the outer side of the box body through bolts, each second ball bearing is arranged in each second bearing, and two ends of the d