CN-122012134-A - Skid-mounted distributed garbage pyrolysis oil-making process equipment

CN122012134ACN 122012134 ACN122012134 ACN 122012134ACN-122012134-A

Abstract

The invention discloses skid-mounted distributed garbage pyrolysis oil preparation process equipment which comprises a first skid-mounted module, a second skid-mounted module and a third skid-mounted module, wherein the first skid-mounted module comprises a pyrolysis rotary kiln, a pyrolysis oil condensing tower and a grinding pump, a gas phase discharge port of the pyrolysis rotary kiln is communicated with the pyrolysis oil condensing tower, a pyrolysis oil outlet is arranged at the bottom of the pyrolysis oil condensing tower and is connected with a feed port of the grinding pump, the discharge port of the grinding pump is respectively connected with a pyrolysis oil storage tank and a spray nozzle of the pyrolysis oil condensing tower through a first pipeline and a second pipeline, the grinding pump is used for grinding pyrolysis oil flowing out of the pyrolysis oil outlet, the first skid-mounted module further comprises a heat exchanger and a pyrolysis oil conveying pump, the heat exchanger is used for cooling pyrolysis oil flowing out of the discharge port of the grinding pump, and the pyrolysis oil conveying pump is used for pumping pyrolysis oil in the second pipeline to the spray nozzle. The invention reduces the garbage disposal difficulty and disposal cost of village and town level administrative areas and improves the economic benefit of garbage disposal.

Inventors

WU SHUTONG
QIU PENGCHENG
ZHAO PENG
Dai Gongxin
ZENG ZHIWEI
GUO SIYONG
SUN LI
LI QIQI
WAN ZHENG
RU BIN
ZHANG LIANG

Assignees

上海电气集团股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260316

Claims (10)

1. The skid-mounted distributed garbage pyrolysis oil preparation process equipment is characterized by comprising a first skid-mounted module, a second skid-mounted module and a third skid-mounted module, wherein the first skid-mounted module comprises a pyrolysis rotary kiln, a pyrolysis oil condensing tower and a grinding pump, a gas phase discharge port of the pyrolysis rotary kiln is communicated with the pyrolysis oil condensing tower, a pyrolysis oil outlet is arranged at the bottom of the pyrolysis oil condensing tower and is connected with a feed inlet of the grinding pump, a discharge port of the grinding pump is respectively connected with a pyrolysis oil storage tank and a spray nozzle of the pyrolysis oil condensing tower through a first pipeline and a second pipeline, and the grinding pump is used for grinding pyrolysis oil flowing out of the pyrolysis oil outlet; The first skid-mounted module further comprises a heat exchanger and a pyrolysis oil delivery pump, the heat exchanger is used for cooling pyrolysis oil flowing out of a discharge port of the grinding pump, the pyrolysis oil delivery pump is used for pumping pyrolysis oil in the second pipeline to the spray nozzle, and control valves are arranged on the first pipeline and the second pipeline; the second skid-mounted module comprises a feeding system, the feeding system is used for conveying household garbage to be pyrolyzed in the pyrolysis rotary kiln, the third skid-mounted module comprises an electrical control mechanism, and the electrical control mechanism is used for providing power for skid-mounted distributed garbage pyrolysis oil production process equipment and controlling operation.
2. The skid-mounted distributed garbage pyrolysis oil preparation process device according to claim 1, wherein the pyrolysis oil condensing tower comprises a primary condensing tower and a secondary condensing tower, the spray nozzles are arranged in the primary condensing tower and the secondary condensing tower, an air outlet and an air inlet are respectively arranged below the spray nozzles of the primary condensing tower and the secondary condensing tower, and the air outlet and the air inlet are communicated through a pipeline.
3. The skid-mounted distributed garbage pyrolysis oil production process device according to claim 2, wherein the grinding pump is connected to a pyrolysis oil outlet of the primary condensing tower; and/or the temperature of the pyrolysis gas in the primary condensing tower is controlled to be reduced to 150-300 ℃, preferably 200-250 ℃; And/or the temperature of the pyrolysis gas in the secondary condensing tower is controlled to be reduced to 30-80 ℃, preferably 40-50 ℃.
4. The skid-mounted distributed garbage pyrolysis oil production process device according to claim 1, wherein the first skid-mounted module further comprises a flue gas purification mechanism, the flue gas purification mechanism comprises an oxidation furnace, a non-condensable gas outlet is formed in the upper end of the pyrolysis oil condensing tower, and the non-condensable gas outlet is connected with the oxidation furnace.
5. The skid-mounted distributed garbage pyrolysis oil production process device according to claim 4, wherein the flue gas purification mechanism further comprises an alkali liquor spray tower and an activated carbon adsorption tower, and a flue gas outlet of the oxidation furnace is sequentially communicated with the alkali liquor spray tower and the activated carbon adsorption tower; And/or the oxidation furnace is a catalytic oxidation furnace or a direct-fired oxidation furnace.
6. The skid-mounted distributed garbage pyrolysis oil production process device according to claim 1, wherein the feeding system comprises a sealing feeding valve group, the sealing feeding valve group comprises a feeding bin and a spiral feeding mechanism, the feeding bin is arranged at a feeding port of the spiral feeding mechanism, and a discharging port of the spiral feeding mechanism is detachably connected with a feeding port of the pyrolysis rotary kiln.
7. The skid-mounted distributed garbage pyrolysis oil production process device according to claim 6, wherein the feeding system further comprises a feeding belt and a buffer bin, the feeding belt is used for conveying household garbage to be treated into the buffer bin, and a discharge port of the buffer bin is connected with a feed port of the sealing feeding valve group through a garbage conveying mechanism.
8. The skid-mounted distributed garbage pyrolysis oil production process device according to claim 1, wherein the pyrolysis rotary kiln further comprises a solid phase discharge port, and the solid phase discharge port is connected with a slag discharging mechanism.
9. The skid-mounted distributed garbage pyrolysis oil production process device according to claim 8, wherein the slag discharging mechanism comprises a cooling spiral feeding mechanism and a slag storage, wherein a feeding end of the cooling spiral feeding mechanism is connected with the solid-phase discharge port, a discharging end of the cooling spiral feeding mechanism is connected with the slag storage, and the slag storage is used for storing solid slag discharged from the solid-phase discharge port; And/or controlling the temperature of the solid waste residue at the outlet of the cooling spiral feeding mechanism to be 80-120 ℃, preferably 80-100 ℃.
10. The skid-mounted distributed garbage pyrolysis oil production process device according to claim 1, wherein the pyrolysis rotary kiln adopts partition wall type heating, electric heating or electromagnetic induction heating; And/or the pyrolysis temperature of the pyrolysis rotary kiln is 350-600 ℃, preferably 400-500 ℃, and more preferably 450 ℃; and/or a drag chain decoking structure is arranged in the pyrolysis rotary kiln; And/or the heat exchanger is a tube condenser; And/or, the first skid-mounted module further comprises a cyclone dust collector, a gas phase discharge port of the pyrolysis rotary kiln is connected with the cyclone dust collector through a pipeline, and a gas outlet of the cyclone dust collector is connected with the pyrolysis oil condensing tower through a pipeline.

Description

Skid-mounted distributed garbage pyrolysis oil-making process equipment Technical Field The invention relates to the field of garbage treatment equipment, in particular to skid-mounted distributed garbage pyrolysis oil production process equipment. Background At present, the domestic garbage recycling of China metropolitan areas is mainly based on a centralized incineration power generation technology, and a matched power generation and flue gas purification system is relatively perfect. However, in village and town level administrative areas, garbage disposal faces the fundamental difference that garbage is generated in small and scattered scale, and if the large-scale centralized incineration mode of large cities is carried, the problems of huge project investment, difficult site selection, uneconomical operation and the like can be faced. In addition, long-distance transportation of scattered village and town garbage to regional treatment centers can generate high transportation cost and increase the risk of secondary pollution, and the aims of energy conservation and carbon reduction are not met from the full life cycle. Meanwhile, the demand of people for green fuel is growing, and household garbage is used as an organic resource which is continuously generated and widely available, and if the household garbage can be locally converted into pyrolysis oil with high energy density, a raw material with great potential is provided for green fuel production, so that the real waste is changed into valuable and resource circulation is realized. Disclosure of Invention The invention aims to overcome the defects of high household garbage transportation cost and low economic benefit in village and town level administrative areas in the prior art, and provides skid-mounted distributed garbage pyrolysis oil production process equipment. The invention solves the technical problems by the following technical scheme: The invention provides skid-mounted distributed garbage pyrolysis oil preparation process equipment which comprises a first skid-mounted module, a second skid-mounted module and a third skid-mounted module, wherein the first skid-mounted module comprises a pyrolysis rotary kiln, a pyrolysis oil condensing tower and a grinding pump, a gas phase discharge port of the pyrolysis rotary kiln is communicated with the pyrolysis oil condensing tower, a pyrolysis oil outlet is arranged at the bottom of the pyrolysis oil condensing tower and is connected with a feed inlet of the grinding pump, a discharge port of the grinding pump is respectively connected with a pyrolysis oil storage tank and a spray nozzle of the pyrolysis oil condensing tower through a first pipeline and a second pipeline, and the grinding pump is used for grinding pyrolysis oil flowing out of the pyrolysis oil outlet; The first skid-mounted module further comprises a heat exchanger and a pyrolysis oil delivery pump, the heat exchanger is used for cooling pyrolysis oil flowing out of a discharge port of the grinding pump, the pyrolysis oil delivery pump is used for pumping pyrolysis oil in the second pipeline to the spray nozzle, and control valves are arranged on the first pipeline and the second pipeline; the second skid-mounted module comprises a feeding system, the feeding system is used for conveying household garbage to be pyrolyzed in the pyrolysis rotary kiln, the third skid-mounted module comprises an electrical control mechanism, and the electrical control mechanism is used for providing power for skid-mounted distributed garbage pyrolysis oil production process equipment and controlling operation. In this scheme, decompose rubbish pyrolysis oil preparation equipment into a plurality of independent modules through sled mode of dress module, be convenient for transportation and assembly to can carry village and town level administrative district with rubbish pyrolysis oil preparation equipment and carry out the in situ pyrolysis to domestic waste, reduce village and town level administrative district's the rubbish treatment degree of difficulty and treatment cost, improve the economic benefits of rubbish treatment. Through the pyrolysis oil that obtains after the domestic waste pyrolysis through milling pump grinding, send into pyrolysis oil condensing tower again after the cooling and spray the cooling to pyrolysis gas, on the one hand can grind the tiny particle dust in the pyrolysis oil into fine particle and avoid blockking up the spray nozzle, on the other hand avoids adopting traditional water to spray, leads to pyrolysis oil to be diluted, increases the degree of difficulty of storing and subsequent processing cost. In one embodiment, the pyrolysis oil condensing tower comprises a primary condensing tower and a secondary condensing tower, wherein the primary condensing tower and the secondary condensing tower are internally provided with spray nozzles, air outlets and air inlets are respectively arranged below the spray nozzles