CN219346466U - Garbage feeding crushing and preheating device - Google Patents
Garbage feeding crushing and preheating device Download PDFInfo
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- CN219346466U CN219346466U CN202320782555.0U CN202320782555U CN219346466U CN 219346466 U CN219346466 U CN 219346466U CN 202320782555 U CN202320782555 U CN 202320782555U CN 219346466 U CN219346466 U CN 219346466U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
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Abstract
The utility model belongs to the technical field of garbage pretreatment, and discloses a garbage feeding crushing and preheating device which comprises a garbage feeding bin and at least one pair of meshing rollers which are arranged in the garbage feeding bin and rotate in opposite directions, wherein the meshing rollers are hollow, a meshing roller heating gas inlet and a meshing roller heating gas outlet are arranged in the meshing rollers in a penetrating manner, and a hot gas distribution opening is arranged on the side wall of the garbage feeding bin.
Description
Technical Field
The utility model belongs to the technical field of garbage pretreatment, and particularly relates to a garbage feeding crushing and preheating device.
Background
In the conventional incineration or pyrolysis gasification treatment process of organic garbage such as household garbage, only the garbage is subjected to necessary crushing pretreatment, the water content of the garbage entering the reaction furnace is high, the heat value is low, a large amount of heat is generally required to be consumed to heat and dry the garbage in the hearth, the reaction stability in the hearth of garbage treatment is affected, and the energy consumption and the operation and maintenance cost of the system are increased.
Among the prior art, as in the chinese patent of application number 201410048325.7, a domestic waste innocent treatment system is disclosed, including rubbish dumping pond, feeding mechanism, stoving mechanism, pyrolysis oven, combustion chamber and draught fan, processing system still includes the rubbish breaker that links to each other through feeding mechanism and rubbish dumping pond, and this system can handle the domestic waste that moisture is more, but because rubbish dumping pond, stoving mechanism, rubbish breaker etc. are the separation setting and connect gradually, area is great on the horizontal direction, and hot air and rubbish direct contact, thereby flow through hollow intermediate layer heating barrel and transfer heat to dry rubbish, consequently the heating stoving is inhomogeneous thoroughly.
Disclosure of Invention
The utility model aims to provide a garbage feeding crushing and preheating device which can integrally crush and preheat garbage, and has the advantages of small occupied area and uniform and thorough heating.
The technical scheme adopted by the utility model is that the garbage feeding crushing and preheating device comprises a garbage feeding bin and at least one pair of meshing rollers which are arranged in the garbage feeding bin and rotate in opposite directions, wherein the meshing rollers are hollow, a meshing roller heating gas inlet and a meshing roller heating gas outlet are arranged in the meshing rollers in a penetrating manner, and a hot gas distribution opening is formed in the side wall of the garbage feeding bin.
Preferably, the meshing roller comprises a meshing roller driving wheel and a meshing roller driven wheel, cutting teeth are respectively arranged on the meshing roller driving wheel and the meshing roller driven wheel, the meshing roller driving wheel and the meshing roller driven wheel are in meshing connection, and a driving motor is connected on the meshing roller driving wheel.
Preferably, both ends of the meshing roller driving wheel and the meshing roller driven wheel are connected with the garbage feeding bin through a slewing bearing.
Preferably, the portions of the engaging roller heating gas inlet and the engaging roller heating gas outlet located inside the engaging roller are provided with uniformly distributed exhaust micropores.
Preferably, the aperture of the exhaust micropore is 1-3 mm.
Preferably, the engaging roller heating gas inlet and the hot gas distributing opening are both provided with flow regulating valves.
Preferably, the hot gas distributing opening is located at the lower side of the engagement roller.
Preferably, the meshing roller is internally filled with a heat storage carrier, and the heat storage carrier is garbage incinerator slag or garbage pyrolysis gasifier slag.
Preferably, the length of the engagement roller heating gas inlet located in the engagement roller is greater than the length of the engagement roller heating gas outlet located in the engagement roller.
The utility model has the beneficial effects that:
(1) The garbage crushing and preheating integrated device has the advantages that the functions of crushing, drying and the like of the fed garbage are realized through the integrated device, the energy consumption and the operation and maintenance cost of the system are reduced, the stability and the reliability of the system are improved, meanwhile, the structure is simple, the occupied area is small, and the space utilization rate is improved;
(2) The method comprises the steps of carrying out multistage heating on the feeding garbage, uniformly and thoroughly heating, wherein the garbage entering a garbage feeding bin is firstly heated by gas subjected to heat exchange by a meshing roller, then is further heated by contact with a roller body in the crushing process by the meshing roller, is then heated again by uniform gas distribution of hot gas at the bottom of a garbage feeding system, and is greatly reduced in water content and obviously improved in temperature after being subjected to crushing and multiple heating;
(3) The roller body for crushing the conventional garbage is of a solid structure, and is used as a hollow cavity structure for heat storage and heat exchange, slag discharged in the conventional garbage incineration, pyrolysis gasification and other treatment projects can be used as a heat storage carrier in the cavity, so that the preheating of the fed garbage can be realized, and a new way can be provided for slag utilization.
Drawings
FIG. 1 is a schematic diagram of a garbage feed pretreatment apparatus.
Fig. 2 shows a garbage feed crushing and heating device.
In the figure: 1-a garbage feeding bin; 2-engaging roller drive wheels; 3-engaging a roller driven wheel; 4-slewing bearing; 5-driving a motor; 6-a meshing roller heating gas inlet; 7-a meshing roller heating gas outlet; 8-hot gas distribution openings; 9-engaging roller heating cavity; 10-a discharge port for pretreated garbage.
Detailed Description
The following is a further detailed description of the embodiments:
the garbage feeding crushing and preheating device comprises a garbage feeding bin 1, a meshing roller driving wheel 2, a meshing roller driven wheel 3, a slewing bearing 4, a driving motor 5, a meshing roller heating gas inlet 6, a meshing roller heating gas outlet 7, a hot gas distribution port 8, a meshing roller heating cavity 9 and a pretreated garbage discharge port 10, as shown in fig. 1 and 2. The garbage feeding bin 1 is a shell with an opening at the upper end, the inside of the shell is rotatably provided with a meshing roller, the meshing roller comprises a meshing roller driving wheel 2 and a meshing roller driven wheel 3, the structural sizes of the meshing roller driving wheel 2 and the meshing roller driven wheel 3 are the same, the garbage feeding bin is of a cavity structure, a meshing roller heating gas inlet 6 and a meshing roller heating gas outlet 7 are arranged in the garbage feeding bin in a penetrating manner, the length of the meshing roller heating gas inlet 6 in the meshing roller is larger than that of the meshing roller heating gas outlet 7 in the meshing roller, and gas circulation can be better realized. The meshing roller driving wheel 2 and the meshing roller driven wheel 3 are uniformly provided with cutting teeth, the cutting teeth are staggered and are in meshing connection, and when feeding, the meshing roller driving wheel is driven by a driving motor to rotate clockwise (seen from the directions of a hot gas inlet and a hot gas outlet) and drives the meshing roller driven wheel to rotate anticlockwise (seen from the directions of the hot gas inlet and the hot gas outlet), so that meshing and shearing actions are formed to crush garbage; the tooth height of the cutting teeth is 1/5-1/20 of the diameter of the driving wheel/driven wheel.
The meshing roller driving wheel 2 is driven by a driving motor 5, the meshing roller driven wheel 3 and the meshing roller driving wheel 2 synchronously rotate through gear transmission, the two ends of the meshing roller driving wheel 2 and the meshing roller driven wheel 3 are connected with the garbage feeding bin 1 through rotary support bearings, and the number of the rotary support bearings is 4.
The meshing roller heating gas inlet 6 and the hot gas distribution opening 8 are respectively provided with a flow regulating valve A and a flow regulating valve B, external hot gas is introduced into the meshing roller heating gas inlet 6 and the hot gas distribution opening 8, the hot gas is high-temperature air obtained by waste incineration, pyrolysis gasification or air with odor after heat exchange, and the hot gas is respectively fed into the meshing roller heating gas inlet 6 and the hot gas distribution opening 8 after being regulated by the flow regulating valve A and the flow regulating valve B.
The pre-treatment waste discharge port 10 is connected to a waste treatment device, which according to one possible embodiment of the utility model is a waste pyrolysis gasifier.
The part of the meshing roller heating air inlet and outlet 6 positioned in the meshing roller heating cavity is uniformly distributed with exhaust micropores, and the aperture of the exhaust micropores is 1-3 mm.
According to the specific embodiment of the utility model, the meshing roller driving wheel 2 and the meshing roller driven wheel 3 are metal roller bodies with the same roller diameter, a heating cavity is arranged in the meshing roller driving wheel and the meshing roller driven wheel, and in order to increase the heat storage capacity, solid materials with larger specific heat capacity such as garbage incinerator slag, garbage pyrolysis gasifier slag and the like can be filled in the heating cavity to serve as a heat storage carrier.
According to the specific embodiment of the utility model, the rotating speed of the driving wheel 2 of the meshing roller is 1-5 r/min, and the rotating speed of the driven wheel of the meshing roller is consistent with the rotating speed of the driving wheel of the meshing roller.
The meshing roller is provided with at least one pair, and the meshing roller driving wheel and the meshing roller driven wheel can be arranged in an array manner to form the garbage pretreatment feeding device with multiple rollers working in a combined mode.
The working principle of the utility model is as follows: the driving motor 5 is connected with the meshing roller driving wheel 2, and drives the meshing roller driven wheel 3 to rotate at the same rotating speed through the rotation of the meshing roller driving wheel 2; the hot gas realizes the gas flow control of the hot gas inlet 6 and the hot gas outlet 8 of the heating gas entering the meshing roller through the flow regulating valve A and the flow regulating valve B; the meshing roller heating gas outlet 7 can be connected with the garbage feeding bin, and the gas subjected to heat exchange is sent to the garbage feeding bin to continuously heat the fed garbage.
Example 1
In the embodiment, the water content of the garbage feed is 28%, the feed speed of the garbage feed bin is 1500kg/h, the rotation speed of the driving wheel of the meshing roller is 5r/min, the rotation speed of the driven wheel of the meshing roller is the same as that of the driving wheel of the meshing roller, and the garbage feed is crushed through the meshing effect of the driving wheel of the meshing roller and the driven wheel of the meshing roller; in the embodiment, the waste incineration, pyrolysis, gasification and smoke exhaust are used as hot gas, the temperature of the smoke is 140 ℃, and the gas flow sent to the meshing roller and the gas flow sent to the hot gas distributing port are 1:1; the heating cavities of the meshing roller driving wheel and the meshing roller driven wheel are not filled with heat storage carriers, the meshing roller driving wheel and the meshing roller driven wheel are heated by means of the temperature of smoke, the roller body temperatures of the meshing roller driving wheel and the meshing roller driven wheel are maintained at 1 ℃, the temperature of the smoke after the roller body is heated is reduced to 130 ℃, and the smoke is discharged into a garbage feeding bin to further heat garbage in the bin; the garbage bulk materials crushed by the driving wheel of the meshing roller and the driven wheel of the meshing roller are crushed, the particle size is greatly reduced, the water content in the garbage is reduced to 15%, and the temperature is increased to 90 ℃; the temperature of the garbage is further increased and the water content is further reduced by heating the garbage through the flue gas sent by the hot gas distribution port at the bottom of the feeding bin, and when the garbage is sent to the pretreated garbage discharge port, the temperature of the garbage is increased to 105 ℃, and the water content is reduced to 10%.
Example 2
In the embodiment, the water content of the garbage feed is 30%, the feeding speed of the garbage feed bin is 1800kg/h, the rotation speed of the driving wheel of the meshing roller is 2r/min, the rotation speed of the driven wheel of the meshing roller is the same as that of the driving wheel of the meshing roller, and the garbage feed is crushed through the meshing action of the driving wheel of the meshing roller and the driven wheel of the meshing roller; in the embodiment, the waste incineration, pyrolysis, gasification and smoke exhaust are used as hot gas, the temperature of the smoke is 145 ℃, and the gas flow sent to the meshing roller and the gas flow sent to the hot gas distributing port are 2:1; the heating cavities of the meshing roller driving wheel and the meshing roller driven wheel are filled with waste incineration or pyrolysis gasification furnace slag as a heat storage carrier, the heat storage carrier is heated by smoke, the heat storage carrier heats the meshing roller driving wheel and the meshing roller driven wheel, the roller body temperatures of the meshing roller driving wheel and the meshing roller driven wheel are maintained at 130 ℃, the smoke temperature after the roller body is heated is reduced to 135 ℃ and is discharged into a waste feeding bin to further heat the waste in the bin; the garbage bulk materials crushed by the driving wheel of the meshing roller and the driven wheel of the meshing roller are crushed, the particle size is greatly reduced, the water content in the garbage is reduced to 12%, and the temperature is increased to 95 ℃; the temperature of the garbage is further increased and the water content is further reduced by heating the garbage through the flue gas sent by the hot gas distribution port at the bottom of the feeding bin, and when the garbage is sent to the pretreated garbage discharge port, the temperature of the garbage is increased to 108 ℃, and the water content is reduced to 6%.
Example 3
In the embodiment, the water content of the garbage feed is 25%, the feeding speed of the garbage feed bin is 10kg/h, the rotating speed of the driving wheel of the meshing roller is 1.0r/min, the rotating speed of the driven wheel of the meshing roller is the same as that of the driving wheel of the meshing roller, and the garbage feed is crushed through the meshing effect of the driving wheel of the meshing roller and the driven wheel of the meshing roller; in the embodiment, the air (odor) extracted from the garbage feeding bin in the garbage incineration or pyrolysis gasification process is heated by an air preheater to be hot gas, the temperature of the air (odor) is 150 ℃, and the flow rate of the gas sent to the meshing roller and the flow rate of the gas sent to the hot gas distributing port are 1:2; the heating cavities of the driving wheel and the driven wheel of the meshing roller are filled with waste incineration or pyrolysis gasification slag as a heat storage carrier, air (odor) heats the heat storage carrier, the heat storage carrier heats the driving wheel and the driven wheel of the meshing roller, the roller body temperatures of the driving wheel and the driven wheel of the meshing roller are maintained at 135 ℃, the temperature of the air (odor) after the roller body is heated is reduced to 140 ℃ and is discharged into a waste feeding bin to further heat the waste in the bin; the garbage bulk materials crushed by the driving wheel of the meshing roller and the driven wheel of the meshing roller are crushed, the particle size is greatly reduced, the water content in the garbage is reduced to 11%, and the temperature is increased to 98 ℃; the garbage is heated by air (odor) sent by a hot gas distribution port at the bottom of the feeding bin, the temperature is further increased, the water content is further reduced, and when the garbage is sent to a pretreated garbage discharge port, the temperature of the garbage is increased to 110 ℃, and the water content is reduced to 5%.
Example 4
In the embodiment, the water content of the garbage feed is 25%, the feeding speed of the garbage feed bin is 1000kg/h, the rotating speed of the driving wheel of the meshing roller is 2.5r/min, the rotating speed of the driven wheel of the meshing roller is the same as that of the driving wheel of the meshing roller, and the garbage feed is crushed through the meshing effect of the driving wheel of the meshing roller and the driven wheel of the meshing roller; in the embodiment, the air (odor) extracted from the garbage feeding bin in the garbage incineration or pyrolysis gasification process is heated by an air preheater to be hot gas, the temperature of the air (odor) is 130 ℃, and the flow rate of the gas sent to the meshing roller and the flow rate of the gas sent to the hot gas distributing port are 1:1; the heating cavities of the driving wheel and the driven wheel of the meshing roller are filled with waste incineration or pyrolysis gasification slag as a heat storage carrier, air (odor) heats the heat storage carrier, the heat storage carrier heats the driving wheel and the driven wheel of the meshing roller, the roller body temperatures of the driving wheel and the driven wheel of the meshing roller are maintained at 1 ℃, the temperature of the air (odor) after the roller body is heated is reduced to 125 ℃ and is discharged into a waste feeding bin to further heat the waste in the bin; the garbage bulk materials crushed by the driving wheel of the meshing roller and the driven wheel of the meshing roller are crushed, the particle size is greatly reduced, the water content in the garbage is reduced to 15%, and the temperature is increased to 92 ℃; the garbage is heated by air (odor) sent by a hot gas distribution port at the bottom of the feeding bin, the temperature is further increased, the water content is further reduced, and when the garbage is sent to a pretreated garbage discharge port, the temperature of the garbage is increased to 105 ℃, and the water content is reduced to 9%.
Claims (9)
1. The garbage feeding crushing and preheating device is characterized by comprising a garbage feeding bin and at least one pair of meshing rollers which are arranged in the garbage feeding bin and rotate in opposite directions, wherein the meshing rollers are hollow, a meshing roller heating gas inlet and a meshing roller heating gas outlet are arranged in the meshing rollers in a penetrating manner, and a hot gas distribution opening is formed in the side wall of the garbage feeding bin.
2. The garbage feeding crushing and preheating device according to claim 1, wherein the meshing roller comprises a meshing roller driving wheel and a meshing roller driven wheel, cutting teeth are uniformly distributed on the meshing roller driving wheel and the meshing roller driven wheel, the meshing roller driving wheel and the meshing roller driven wheel are in meshing connection, and a driving motor is connected on the meshing roller driving wheel.
3. The garbage feeding crushing and preheating device according to claim 2, wherein both ends of the meshing roller driving wheel and the meshing roller driven wheel are connected with the garbage feeding bin through slewing bearing.
4. The garbage feed crushing and preheating apparatus according to claim 1, wherein the portion of the engagement roller heating gas inlet and the engagement roller heating gas outlet located inside the engagement roller is provided with uniformly distributed exhaust micropores.
5. The garbage feed crushing and preheating apparatus according to claim 4, wherein the aperture of the exhaust micropores is 1-3 mm.
6. The garbage feed crushing and preheating device according to claim 1, wherein the engaging roller heating gas inlet and the hot gas distributing opening are provided with flow regulating valves.
7. The garbage feed crushing and preheating apparatus according to claim 1, wherein the hot gas distributing port is located at the lower side of the engagement roller.
8. The garbage feed crushing and preheating device according to claim 1, wherein the meshing roller is internally filled with a heat storage carrier, and the heat storage carrier is garbage incineration slag or garbage pyrolysis gasifier slag.
9. The garbage feed crushing and preheating apparatus according to claim 1, wherein the length of the engagement roller heating gas inlet in the engagement roller is longer than the length of the engagement roller heating gas outlet in the engagement roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320782555.0U CN219346466U (en) | 2023-04-11 | 2023-04-11 | Garbage feeding crushing and preheating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320782555.0U CN219346466U (en) | 2023-04-11 | 2023-04-11 | Garbage feeding crushing and preheating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219346466U true CN219346466U (en) | 2023-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320782555.0U Active CN219346466U (en) | 2023-04-11 | 2023-04-11 | Garbage feeding crushing and preheating device |
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| CN (1) | CN219346466U (en) |
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- 2023-04-11 CN CN202320782555.0U patent/CN219346466U/en active Active
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