CN214681978U

CN214681978U - Dry sludge crushing device

Info

Publication number: CN214681978U
Application number: CN202120197220.3U
Authority: CN
Inventors: 余晓琴; 沈振彬; 林振国; 汪盼盼; 欧阳璐; 钟婷姗; 金余其
Original assignee: Zhejiang Best Energy & Environment Co ltd
Current assignee: Zhejiang Best Energy & Environment Co ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-11-12
Anticipated expiration: 2031-01-25

Abstract

The utility model discloses a dry sludge crushing device, a serial communication port, including casing, feed unit, feeding unit, broken unit, clear stifled unit and ejection of compact unit, the feed unit gives the dry mud is supplied with to the feeding unit, the feeding unit is installed the upper end of casing, the feeding unit will dry sludge transfer gives the broken unit of setting in its below, broken unit and clear stifled unit are located in the casing, broken unit is right dry sludge carries out the breakage, the broken unit below sets up clear stifled unit, set up on the bottom of casing ejection of compact unit, broken dry sludge is followed ejection of compact unit discharges. The utility model discloses a with unit integration such as feed, breakage, clear stifled, overcome that the breaker feeding is not smooth, the ejection of compact is easily stifled etc. and show the problem, realize high efficiency, feature of environmental protection, energy-conservation, the security of mud crushing process.

Description

Dry sludge crushing device

Technical Field

The utility model belongs to the environmental protection equipment field, concretely relates to dry sludge crushing device.

Background

In the conventional sludge incineration treatment process, sludge is directly poured into a storage bin and then is conveyed into an incinerator through conveying equipment. The large-block formed sludge is often blocked, so that the conveying efficiency is low, and therefore, the sludge is often required to be subjected to coarse crushing treatment. The crusher is directly connected to the bottom of the storage bin, so that the load fluctuation is easy to be overlarge. To prevent the crusher from stopping running due to overload, the feeding speed needs to be balanced; and a conveyor is added between the bin and the crusher to realize uniform feeding, and the defects of large occupied area, high energy consumption and the like of equipment exist.

Secondly, the hardness of the sludge is different during feeding, the crushing effect is different, and the crushing device is damaged due to the over-hard materials, so that the service life is reduced; the sludge has various components and different chemical properties, and the temperature in the crushing chamber rises suddenly along with mutual friction in the crushing process, so that fire disasters and the like are easily caused.

In addition, the moisture content of the sludge formed by the large blocks is still high, materials are easily adhered to the surface of the crushing roller, and the crushing efficiency is reduced. The roller is not cleaned regularly, so that the roller surface material is blocked, the crushing resistance is increased, and the energy consumption is increased if the same crushing effect is realized.

In conclusion, the problems of high feeding control difficulty, easy blockage of discharging, easy loss of roller teeth, easy occurrence of combustion accidents in a crushing chamber, environmental pollution and dust raising and the like exist in the dry sludge crushing process.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a dry sludge crushing device to solve the sludge crusher feeding that exists among the correlation technique not smooth, the easy stifled problem of the ejection of compact.

According to the embodiment of the utility model provides a dry sludge crushing device, including casing, feed unit, broken unit, clear stifled unit and ejection of compact unit, the feed unit gives the feed unit supplies with dry mud, the feed unit is installed the upper end of casing, the feed unit will dry mud transmits for setting up in its below broken unit, broken unit and clear stifled unit are located in the casing, broken unit is right dry mud is broken, the broken unit below sets up clear stifled unit, set up on the bottom of casing ejection of compact unit, broken dry mud is followed ejection of compact unit discharges.

Furthermore, the dry sludge needs to be subjected to sorting pretreatment to remove large stone blocks, iron blocks and wood blocks which are mixed with the dry sludge; and dehydrating to ensure that the water content is 30-50% and the particle size is 500-800 mm, and then feeding the mixture into the feeding unit.

Further, the feeding unit comprises a feeding machine, a buffer bin and a position sensor, the position sensor is used for collecting position information of the dry sludge in the buffer bin and transmitting the position information to the feeding machine, and the feeding machine feeds the dry sludge in the buffer bin to the feeding unit.

Furthermore, the feeding unit is positioned at the top end of the shell, the upper part of the feeding unit is connected with a buffer bin of the feeding unit, and the lower part of the feeding unit is provided with a crushing unit; the size of the feed inlet is (800 multiplied by 800-1000 multiplied by 1000) mm.

Furthermore, the crushing unit comprises two rollers which are transversely and symmetrically arranged and rotate oppositely; the roller comprises a roller body, wherein a roller surface of the roller is provided with a detachable toothed plate, crushing teeth are welded on the toothed plate, and the two crushing teeth on the roller are meshed with each other to form a crushing area. Preferably, the diameter of the roller is 800-900 mm.

Furthermore, the two rollers are transversely connected with a set of spring protection device respectively; the spring protection device comprises a protection rod, a compression spring and a support, one end of the protection rod is connected with the roller, the other end of the protection rod is provided with an adjusting nut, the compression spring is arranged on the protection rod, two ends of the compression spring are respectively connected with the roller and the adjusting nut, and the spring protection device is fixed on the shell through the support.

Furthermore, the blockage removing unit comprises a fixed support and a blockage removing plate with a tooth-shaped notch, the tooth-shaped notch of the blockage removing plate is meshed with the broken teeth on the roller surface of the roller, blockage removal of the whole roller surface is achieved along with rotation of the roller, and the blockage removing plate is fixed to the bottom of the inner surface of the shell through the fixed support.

The driving unit comprises a motor, a speed reducer and a belt, an output shaft of the motor is connected with the speed reducer, and an output shaft of the speed reducer drives the two rollers to move and rotate in opposite directions through belt transmission.

Further, still include the auxiliary unit, the auxiliary unit includes temperature alarm device and automatic fire extinguishing device, temperature alarm device is used for monitoring the inside temperature of casing starts after the temperature is higher than critical temperature automatic fire extinguishing device, automatic fire extinguishing device's fire control spout set up the feed inlet outer wall of feed unit.

Furthermore, the discharging unit is arranged at the bottom end of the frame.

According to above technical scheme, compare with prior art, the beneficial effects of the utility model are that: the utility model discloses mud is through preliminary treatment and dehydration after handling, through feed unit even feed to feed unit, gets into crushing unit again and carries out the breakage, the crushing unit below sets up clear stifled unit carries out clear stifled to crushing unit, and the mud is broken to be accomplished and is discharged from ejection of compact unit. The whole device has simple and reliable flow, low operation requirement and small occupied area, can ensure even feeding and quick discharging, prolongs the whole service life of equipment, and reduces dust pollution, thereby solving the problems of unsmooth feeding and easy blockage of the discharging of the sludge crusher in the related technology.

Drawings

The drawings accompanying the description of the present invention are provided to provide further understanding of the present invention, and the exemplary embodiments and descriptions thereof are provided to explain the present invention and not to constitute an undue limitation on the present invention. In the drawings:

FIG. 1 is a schematic view of a dry sludge crushing device provided by an embodiment of the present invention;

in the figure: 1. a supply unit; 2. a feed unit; 3. a crushing unit; 4. a blockage clearing unit; 5. a drive unit; 6. a frame; 7. a discharging unit; 8. an auxiliary unit; 9. a housing; 10. a feeder; 11. a buffer bin; 12. a position sensor; 13. a roller; 14. crushing teeth; 15. fixing a bracket; 16. clearing the blockage; 17. a temperature alarm device; 18. an automatic fire extinguishing device; 19. a toothed plate; 20. and a spring protection device.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1, the embodiment of the utility model provides a dry sludge crushing device, the device include casing 9, feed unit 1, feed unit 2, broken unit 3, clear stifled unit 4 and discharging unit 7, feed unit 1 gives feed unit 2 supplies with dry mud, feed unit 2 installs the upper end of casing 9, feed unit 2 will dry mud transmits for the broken unit 3 that sets up in its below, broken unit 3 and clear stifled unit 4 are located in casing 9, broken unit 3 is right dry mud is broken, broken unit 3 below sets up clear stifled unit 4, set up on the bottom of casing 9 discharging unit 7, broken dry mud is followed discharging unit 7 discharges.

The utility model discloses mud is through preliminary treatment and dehydration after handling, through feeding unit 1 even feed to feed unit 2, reentrant crushing unit 3 carries out the breakage, 3 below settings of crushing unit clear stifled unit 4 carries out clear stifled to crushing unit 3, and the broken completion of mud is discharged from ejection of compact unit 7. The whole device has simple and reliable flow, low operation requirement and small occupied area, can ensure even feeding and quick discharging, prolongs the whole service life of equipment, and reduces dust pollution, thereby solving the problems of unsmooth feeding and easy blockage of the discharging of the sludge crusher in the related technology.

In the embodiment, the dry sludge is subjected to sorting pretreatment to remove impurities such as large stones, iron blocks, wood blocks and the like, so that substances with high hardness are prevented from entering the worn roller teeth; and dehydrating to ensure that the water content is 30-50% and the particle size is 500-800 mm, and then feeding the mixture into the feeding unit.

In this embodiment, the feeding unit 1 includes a feeder 10, a buffer bin 11 and a position sensor 12, the position sensor 12 is disposed in the buffer bin 11, and monitors position information (i.e., height change) of dry sludge in the buffer bin 11 in real time, and transmits a sensing signal to the feeder 10. The feeding of the buffer bin 11 is controlled by the feeder 10 in a vibration mode, so that dry sludge is uniformly fed to the crusher feeding unit 2, uniform feeding to the crusher feeding unit is realized under the condition that conveying equipment is not added, overload operation of the crusher caused by instantaneous feeding is reduced, and crushing efficiency is improved.

In this embodiment, the feeding unit 2 is located at the top end of the housing 9, preferably, is disposed at the center of the top end, and has the same distance with the two sides inside the housing 9, so as to uniformly distribute the stress of the whole system. The upper part of the feed unit 2 is sealingly connected, preferably flanged, to the surge bin 11 of the feed unit 1. The lower part of the feed unit 2 is provided with a crushing unit 3. The upper part of the crusher is connected with a buffer bin 11 of the feeding unit 1, and the lower part of the crusher is provided with a crushing unit; the size of the feeding hole is (800 multiplied by 800-1000 multiplied by 1000) mm, preferably, the size is 800 multiplied by 800mm, and the risk of sludge bridging is reduced.

In this embodiment, the crushing unit 3 includes two rollers 13 that are transversely symmetrically disposed and rotate oppositely; the other sides of the two rollers 13 are respectively close to the inner wall of the crusher shell 9, so that the sludge can be effectively prevented from falling down from the side edges of the two rollers to cause local blockage. The diameter of the roller 13 is preferably 800-900 mm and slightly smaller than the size of the feeding unit, so that the phenomenon of material return caused by the falling of sludge from the other side of the two rollers can be effectively avoided. The roller surface of the roller wheel 13 is provided with a detachable toothed plate 19, the toothed plate 19 is welded with crushing teeth 14, and the two crushing teeth 14 on the roller wheel 13 are meshed with each other to form a crushing area. The crushing teeth 14 are welded on the toothed plate 19, and the toothed plate 19 is detachably connected on the roller surface 13 through fasteners, so that the quick-wear parts can be replaced conveniently. The crushing teeth 14 are preferably made of manganese alloy.

In this embodiment, the two rollers 13 are transversely connected with a set of spring protection device 20 respectively; the spring protection device 20 comprises a protection rod, a compression spring and a bracket, wherein one end of the protection rod is connected with the roller 13, and the other end of the protection rod is provided with an adjusting nut; the compression spring is arranged on the protective rod, and two ends of the compression spring are respectively connected with the roller 13 and the adjusting nut; the spring protection device 20 is fixed to the housing 9 by a bracket. On one hand, the spring device 20 can adjust the distance between the two rollers according to the particle size of the sludge at the inlet; on the other hand, when the inlet sludge contains difficultly-broken substances, a safety protection mechanism is started to slow down the loss rate of the inlet sludge.

In this embodiment, the blockage removing unit 4 includes a fixed support 15 and a blockage removing plate 16 with a tooth-shaped notch, the tooth-shaped notch is arranged at one end of the blockage removing plate 16, the tooth-shaped notch of the blockage removing plate 16 is meshed with the crushing teeth 14 on the roller surface of the roller 13, and the blockage removing of the whole roller surface is realized along with the rotation of the roller 13, so that the crushing resistance is reduced, and the service life of the roller teeth is prolonged. The blockage removing plate 16 is fixed at the bottom of the inner surface of the shell 9 through the fixing bracket 15.

In this embodiment, the roller device further comprises a driving unit 5, the driving unit 5 comprises a motor, a speed reducer and a belt, the driving unit 5 is arranged on the frame 6, an output shaft of the motor is connected with the speed reducer, and an output shaft of the speed reducer drives the two rollers 13 to rotate in the opposite direction through belt transmission.

In this embodiment, still include auxiliary unit 8, auxiliary unit 8 includes temperature alarm device 17 and automatic fire extinguishing device 18, temperature alarm device 17 is used for monitoring the inside temperature of casing, starts after the temperature is higher than critical temperature automatic fire extinguishing device, automatic fire extinguishing device 18's fire control spout set up in feed unit feed inlet outer wall. The fire nozzle may be connected to a water/gas injection pipe. The critical temperature is 200 to 300 ℃, preferably 200 ℃, which is lower than the ignition point of general sludge. Temperature alarm device and automatic fire extinguishing device can monitor the temperature variation in the broken chamber fast, reduce the risk of conflagration. The discharging unit is arranged at the bottom end of the frame 6.

The dry sludge crushing device is combined, and a test is carried out on the site, and the specific treatment results are as follows:

the plate-and-frame filter-pressed sludge with the water content of 50% and the particle size of 500mm passes through the crushing device, the particle size of the discharged sludge is 30-50 mm, and the crushing effect is good; the treatment capacity of the crusher is 20t/d, the crusher runs for 30d, no obvious blockage situation is found, and the wear rate of the roller teeth is low.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a dry sludge crushing device, its characterized in that includes casing, feed unit, broken unit, clear stifled unit and ejection of compact unit, the feed unit gives the feed unit supplies with dry mud, the feed unit is installed the upper end of casing, the feed unit will dry mud transmits for the broken unit who sets up in its below, broken unit and clear stifled unit are located in the casing, broken unit is right dry mud carries out the breakage, the broken unit below sets up clear stifled unit, set up on the bottom of casing ejection of compact unit, broken dry mud is followed ejection of compact unit discharges.

2. The dry sludge crushing device according to claim 1, wherein the feeding unit comprises a feeding machine, a buffer bin and a position sensor, the position sensor is used for collecting position information of the dry sludge in the buffer bin and transmitting the position information to the feeding machine, and the feeding machine feeds the dry sludge in the buffer bin to the feeding unit.

3. The dry sludge crushing device according to claim 1, wherein the feeding unit is positioned at the top end of the shell, the upper part of the feeding unit is connected with the buffer bin of the feeding unit, and the lower part of the feeding unit is provided with the crushing unit.

4. The dry sludge crushing device according to claim 1, wherein the crushing unit comprises two rollers which are transversely symmetrically arranged and rotate oppositely; the roller comprises a roller body, wherein a roller surface of the roller is provided with a detachable toothed plate, crushing teeth are welded on the toothed plate, and the two crushing teeth on the roller are meshed with each other to form a crushing area.

5. The dry sludge crushing device of claim 4, wherein a set of spring protection device is transversely connected to each of the two rollers.

6. The dry sludge crushing device according to claim 5, wherein the spring protection device comprises a protection rod, a compression spring and a bracket, one end of the protection rod is connected with the roller, the other end of the protection rod is provided with an adjusting nut, the compression spring is arranged on the protection rod, two ends of the compression spring are respectively connected with the roller and the adjusting nut, and the spring protection device is fixed on the shell through the bracket.

7. The dry sludge crushing device according to claim 4, wherein the blockage removing unit comprises a fixed bracket and a blockage removing plate with a tooth-shaped notch, the tooth-shaped notch of the blockage removing plate is meshed with the crushing teeth on the roller surface of the roller, the blockage removing of the whole roller surface is realized along with the rotation of the roller, and the blockage removing plate is fixed at the bottom of the inner surface of the shell through the fixed bracket.

8. The dry sludge crushing device according to claim 5, further comprising a driving unit, wherein the driving unit comprises a motor, a speed reducer and a belt, an output shaft of the motor is connected with the speed reducer, and an output shaft of the speed reducer drives the two rollers to rotate in opposite directions through belt transmission.

9. The dry sludge crushing device according to claim 1, further comprising an auxiliary unit, wherein the auxiliary unit comprises a temperature alarm device and an automatic fire extinguishing device, the temperature alarm device is used for monitoring the temperature inside the shell, the automatic fire extinguishing device is started when the temperature is higher than a critical temperature, and a fire nozzle of the automatic fire extinguishing device is arranged on the outer wall of the feeding hole of the feeding unit.

10. The dry sludge crushing device according to claim 1, wherein the discharging unit is arranged at the bottom end of the frame.