Complete set of technical equipment for multi-source solid waste zero-landfill harmless treatment

Abstract

The invention discloses a complete set of technical equipment for zero-landfill harmless treatment of multi-source solid waste, comprising: a high-temperature grinding unit for mixing and chopping the fed multi-source solid waste, adding water and grinding into solid waste slurry; the water-solid-gas-smoke self-purification unit is used for heating, drying and granulating the solid waste slurry to form dry powder, pressing and forming the dry powder into a solid waste dry powder blank, purifying smoke generated in the heating and drying process of the solid waste slurry, and cooling generated water vapor for recycling; the sintering treatment unit is used for carrying out vitrification sintering treatment on the solid waste dry powder blank to obtain a recycling product; and the intelligent control unit is used for automatically controlling the high-temperature grinding unit, the water-solid-gas-smoke self-purification unit and the sintering treatment unit to work. According to the method, the multi-source solid waste can be treated into the resourceful product, and harmlessness, ultralow emission, energy conservation and environmental protection in the resourceful treatment process can be ensured while the quality of the resourceful product is ensured.

Description

Technical Field

[0001] The invention relates to environmentally friendly resource utilization of multi-source solid waste, and specifically to a complete set of technical equipment for zero-landfill harmless treatment of multi-source solid waste. Background Art

[0002] At present, the problems of high mix, high organic content, high water content, high stockpiling, and high risk of solid waste are particularly prominent, resulting in a serious lag in the resource utilization, reduction, and harmlessness of solid waste. The process resource utilization of solid waste to promote safe and harmless treatment is a difficult problem that needs to be solved urgently. Therefore, strengthening the prevention and control of solid waste pollution and improving its resource utilization rate and level have become important ways to control solid waste pollution: solid waste resource utilization can recover the rich resources and energy contained in it, and accelerate recycling to achieve coordinated control of waste resource utilization and secondary pollution. In this process, the solid waste pollution problem is effectively solved by gradually absorbing waste. Through the regional multi-source solid waste harmless treatment model, the high-quality utilization of solid waste optimizes high-quality development.

[0003] The existing multi-source solid waste resource utilization equipment has the disadvantages of large pollution emissions and high costs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a complete set of technical equipment for zero-landfill harmless treatment of multi-source solid waste.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0006] A complete set of technical equipment for zero-landfill harmless treatment of multi-source solid waste, characterized by comprising:

[0007] The high temperature grinding unit is used to mix and chop the input multi-source solid waste, and then add water to grind it into solid waste slurry;

[0008] The water-solid-gas-fume self-purification unit is used to heat, dry and granulate the solid waste slurry into dry powder, and then press it into a solid waste dry powder embryo, and purify the fume generated during the heating and drying of the solid waste slurry, and cool the generated water vapor for recycling;

[0009] A sintering disposal unit, used for vitrifying and sintering the solid waste dry powder embryo to dispose of it into a resource product;

[0010] The intelligent control unit is used to automatically control the operation of the high-temperature grinding unit, the water-solid gas and smoke self-purification unit and the sintering disposal unit.

[0011] Therefore, the present invention can realize the processing of multi-source solid waste into resource products, and can ensure the harmlessness, ultra-low emission, energy conservation and environmental protection of the resource processing process while ensuring the quality of the resource products.

[0012] Preferably: the water-solid-gas-fume self-purification unit consists of a hot air furnace, a drying tower, a second conveying equipment, a powder storage bin, a dry powder press, a bag dust collector, a condenser and a cooling water pool; the solid waste slurry obtained by grinding in the high-temperature grinding unit is sprayed into the drying tower at high pressure through a pump suction equipment, and is heated, dried and granulated through a hot air furnace. The formed dry powder is transported to the powder storage bin through the second conveying equipment, and then pressed into a solid waste dry powder embryo by a dry powder press; and the flue gas generated during the heating and drying process of the solid waste slurry in the drying tower is output to the bag dust collector for dust removal and purification, so that after the flue gas meets the emission standards, the remaining water vapor in the flue gas is output to the condenser for cooling to form condensed water, and the condensed water is discharged into the cooling water pool to be used as pulping water for the wet ball mill to achieve recycling.

[0013] The hot air furnace is preferably heated by gas, and the heating and drying are performed through a gas nozzle, with the maximum temperature reaching 1200° C., thereby effectively decomposing organic pollutants in the solid waste sludge, rendering the flue gas harmless and meeting emission standards.

[0014] Preferably: the high temperature grinding unit is composed of a mixer, a first conveying device, a wet ball mill, a mud pool and a mud barrel. The mixer mixes and shreds the multi-source solid waste to form a mixture, and then transports the mixture to the wet ball mill through the first conveying device for grinding with water. After being slurried into solid waste mud, it is transferred to the mud barrel through the mud pool for storage, and the mud barrel is equipped with a stirrer to stir the solid waste mud in the mud barrel to prevent the solid waste mud from solidifying.

[0015] Among them, the chopping and mixing functions of the mixer are preferably completed by rotating a roller with a blade, driven by a motor; and the mixer is preferably equipped with a weighing function completed by a weight sensor, displaying the weight value through a display, and recording the usage of raw and auxiliary materials.

[0016] Preferably, the sintering disposal unit adopts a roller kiln heated by natural gas, and the roller kiln is equipped with an exhaust device, which passes the gas extracted from the roller kiln into the mud barrel. Therefore, the flue gas generated by the sintering of the solid waste dry powder embryo in the roller kiln is thermally decomposed to form CO2, water vapor and NO2 during the sintering process, and then passed into the mud barrel through the exhaust device for filtering treatment.

[0017] Preferably: the roller kiln is divided into a drying section, a preheating section, a firing section, a rapid cooling section, an indirect cooling section and a strong cooling section from the feeding of the solid waste dry powder embryo to the discharge of the resource product. The drying section, the preheating section and the firing section are provided with high-temperature burners with successively increasing combustion temperatures. The rapid cooling section is provided with a heat exchange device for heat recovery, which can be used for the mud drying process or heating and hot water supply. The exhaust device extracts air from the indirect cooling section to achieve heat recovery at the same time. The strong cooling section is located outside the furnace of the roller kiln for the discharge of the resource product. Among them, the drying section, the preheating section and the firing section of the roller kiln are all equipped with temperature sensors and pressure sensors.

[0018] Preferably: the intelligent control unit includes an equipment automation control system, a pressure control system and a temperature control system;

[0019] The equipment automation control system controls the high-temperature grinding unit, the water-solid gas and smoke self-purification unit and the sintering treatment unit to start and stop working according to the preset process, and displays the equipment operation status of the high-temperature grinding unit, the water-solid gas and smoke self-purification unit and the sintering treatment unit on the display device;

[0020] The pressure control system monitors the pressure in the roller kiln through a pressure sensor installed in the sintering disposal unit, and controls the natural gas injection amount of the high-temperature burner according to the pressure monitoring result to control the pressure in the roller kiln and keep the pressure in the kiln stable;

[0021] The temperature control system monitors the temperature in the roller kiln through a temperature sensor installed in the sintering treatment unit, and controls the natural gas injection amount of the high-temperature burner according to the temperature monitoring result to control the temperature in the roller kiln and keep the temperature in the kiln stable;

[0022] Preferably: the intelligent control unit also includes a metering system; the metering system measures the water consumption, electricity consumption, gas consumption, raw and auxiliary material usage and resource product output of the high-temperature grinding unit, water-solid gas-fume self-purification unit and sintering disposal unit through water meters, electricity meters, gas meters and weight sensors, and transmits the metering data to the control center to calculate the costs of raw materials, water, electricity and gas, and generate cost analysis reports on a daily basis.

[0023] Preferably: the intelligent control unit also includes an online pollution monitoring system and an alarm system; the online pollution monitoring system is used to monitor gas pollution at the site where the complete set of technical equipment for zero landfill and harmless treatment of multi-source solid waste is located, and the alarm system receives the working data of the automation control system, pressure control system, temperature control system, metering system and online pollution monitoring system respectively, and determines whether a preset safety problem occurs through the received working data, and issues an alarm when the judgment result is yes, and voice reminds the staff to evacuate and repair as soon as possible, and specifically controls the equipment to stop running.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] First, the present invention can process multi-source solid waste into resource products through the coordinated work of the high-temperature grinding unit, the water-solid gas-fume self-purification unit and the sintering disposal unit, and can ensure the harmlessness, ultra-low emissions, energy conservation and environmental protection of the resource processing process while ensuring the quality of the resource products.

[0026] Second, the present invention performs automatic control through an intelligent control unit, which can reduce labor costs, improve the disposal efficiency of multi-source solid waste, and visualize data of the entire disposal process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0028] Figure 1 It is a structural schematic diagram of the complete set of technical equipment for zero-landfill harmless treatment of multi-source solid waste according to the present invention. DETAILED DESCRIPTION

[0029] The present invention is described in detail below in conjunction with the embodiments and the accompanying drawings to help those skilled in the art better understand the inventive concept of the present invention. However, the protection scope of the claims of the present invention is not limited to the following embodiments. For those skilled in the art, all other embodiments obtained without creative work without departing from the inventive concept of the present invention belong to the protection scope of the present invention.

[0030] like Figure 1 As shown, the present invention discloses a complete set of technical equipment for zero-landfill harmless treatment of multi-source solid waste, including:

[0031] The high temperature grinding unit A is used to mix and chop the input multi-source solid waste, and then add water to grind it into solid waste slurry;

[0032] The water-solid-gas-fume self-purification unit B is used to heat, dry and granulate the solid waste slurry into dry powder, and then press it into a solid waste dry powder embryo, and purify the flue gas generated during the heating and drying of the solid waste slurry, and cool the generated water vapor for recycling;

[0033] The sintering and disposal unit C is used to vitrify and sinter the solid waste dry powder embryo to become a resource product;

[0034] The intelligent control unit D is used to automatically control the operation of the high-temperature grinding unit A, the water-solid gas and smoke self-purification unit B and the sintering disposal unit C.

[0035] Therefore, the present invention can realize the processing of multi-source solid waste into resource products, and can ensure the harmlessness, ultra-low emission, energy conservation and environmental protection of the resource processing process while ensuring the quality of the resource products.

[0036] The above is a basic implementation of the present invention, and further optimization, improvement and limitation can be made on the basis of the basic implementation:

[0037] Preferably: the water-solid-gas-fume self-purification unit B is composed of a hot air furnace B1, a drying tower B2, a second conveying equipment B3, a powder storage bin B4, a dry powder press B5, a bag dust collector B6, a condenser B7 and a cooling water pool B8; the solid waste slurry obtained by grinding in the high-temperature grinding unit A is sprayed into the drying tower B2 at high pressure through a pump suction device, and is heated, dried and granulated through the hot air furnace B1. The formed dry powder is transported to the powder storage bin B4 through the second conveying equipment B3, and then pressed into a solid waste dry powder embryo by the dry powder press B5; and the flue gas generated during the heating and drying process of the solid waste slurry in the drying tower B2 is output to the bag dust collector B6 for dust removal and purification, so that after the flue gas meets the emission standards, the remaining water vapor in the flue gas is output to the condenser B7 for cooling to form condensed water, and the condensed water is discharged into the cooling water pool B8 to be used as pulping water for the wet ball mill A3 to achieve recycling.

[0038] The hot blast furnace B1 is preferably heated by gas and dried by a gas nozzle, with the highest temperature reaching 1200° C., thereby effectively decomposing organic pollutants in the solid waste sludge, rendering the flue gas harmless and meeting emission standards.

[0039] Preferably: the high temperature grinding unit A is composed of a mixer A1, a first conveying device A2, a wet ball mill A3, a mud pool A4 and a mud barrel A5. The mixer A1 mixes and shreds the input multi-source solid waste into a mixture, and then transports the mixture to the wet ball mill A3 through the first conveying device A2 for grinding with water. After being slurried into solid waste mud, it is transferred to the mud barrel A5 through the mud pool A4 for storage, and the mud barrel A5 is equipped with a stirrer to stir the solid waste mud in the mud barrel A5 to prevent the solid waste mud from solidifying.

[0040] Among them, the chopping and mixing functions of the mixer A1 are preferably completed by rotating a roller with a blade, driven by a motor; and the mixer A1 is preferably equipped with a weighing function completed by a weight sensor, displaying the weight value through a display, and recording the usage of raw and auxiliary materials.

[0041] Preferably, the sintering disposal unit C uses a roller kiln heated by natural gas, and the roller kiln is equipped with an exhaust device, which passes the gas extracted from the roller kiln into the mud barrel A5. Therefore, the flue gas generated by the sintering of the solid waste dry powder embryo in the roller kiln is thermally decomposed to form CO2, water vapor and NO2 during the sintering process, and then passed into the mud barrel A5 through the exhaust device for filtering.

[0042] Preferably: the roller kiln is divided into a drying section, a preheating section, a firing section, a rapid cooling section, an indirect cooling section and a strong cooling section from the feeding of the solid waste dry powder embryo to the discharge of the resource product. The drying section, the preheating section and the firing section are provided with high-temperature burners with successively increasing combustion temperatures. The rapid cooling section is provided with a heat exchange device for heat recovery, which can be used for the mud drying process or heating and hot water supply. The exhaust device extracts air from the indirect cooling section to achieve heat recovery at the same time. The strong cooling section is located outside the furnace of the roller kiln for the discharge of the resource product. Among them, the drying section, the preheating section and the firing section of the roller kiln are all equipped with temperature sensors and pressure sensors.

[0043] Preferably: the intelligent control unit D includes an equipment automation control system, a pressure control system and a temperature control system;

[0044] The equipment automation control system controls the high-temperature grinding unit A, the water-solid gas and fume self-purification unit B and the sintering treatment unit C to start and stop the equipment according to the preset process, and displays the equipment operation status of the high-temperature grinding unit A, the water-solid gas and fume self-purification unit B and the sintering treatment unit C on the display device;

[0045] The pressure control system monitors the pressure in the roller kiln through a pressure sensor installed in the sintering treatment unit C, and controls the natural gas injection amount of the high-temperature burner according to the pressure monitoring result to control the pressure in the roller kiln and keep the pressure in the kiln stable;

[0046] The temperature control system monitors the temperature in the roller kiln through the temperature sensor installed in the sintering treatment unit C, and controls the natural gas injection amount of the high-temperature burner according to the temperature monitoring result to control the temperature in the roller kiln and keep the temperature in the kiln stable;

[0047] Preferably: the intelligent control unit D also includes a metering system; the metering system measures the water consumption, electricity consumption, gas consumption, raw and auxiliary material usage and resource product output of the high-temperature grinding unit A, the water-solid gas-fume self-purification unit B and the sintering disposal unit C through water meters, electricity meters, gas meters and weight sensors, and transmits the metering data to the control center to calculate the costs of raw materials, water, electricity and gas, and generate cost analysis reports on a daily basis.

[0048] Preferably: the intelligent control unit D also includes an online pollution monitoring system and an alarm system; the online pollution monitoring system is used to monitor the gas pollution at the site where the complete set of technical equipment for zero landfill and harmless treatment of multi-source solid waste is located, and the alarm system receives the working data of the automation control system, pressure control system, temperature control system, metering system and online pollution monitoring system respectively, and determines whether a preset safety problem occurs through the received working data, and issues an alarm when the judgment result is yes, and voice reminds the staff to evacuate and repair as soon as possible, and specifically controls the equipment to stop running.

[0049] The present invention is not limited to the above-mentioned specific implementation modes. According to the above-mentioned contents, in accordance with the common technical knowledge and customary means in the field, without departing from the above-mentioned basic technical ideas of the present invention, the present invention can also make other various forms of equivalent modifications, replacements or changes, all of which fall within the protection scope of the present invention.

Claims

1. A complete set of technical equipment for zero-landfill harmless treatment of multi-source solid waste, characterized in that: include: The high temperature grinding unit (A) is used to mix and chop the input multi-source solid waste, and then grind it into solid waste slurry by adding water; The water-solid-gas-fume self-purification unit (B) is used to heat, dry and granulate the solid waste slurry into dry powder, and then press and shape it into a solid waste dry powder embryo, and purify the fume generated during the heating and drying of the solid waste slurry, and cool the generated water vapor for recycling; A sintering and disposal unit (C) is used to vitrify and sinter the solid waste dry powder embryo to produce a resource product; An intelligent control unit (D) is used to automatically control the operation of the high-temperature grinding unit (A), the water-solid gas and smoke self-purification unit (B) and the sintering disposal unit (C).

2. According to claim 1, the complete set of technical equipment for zero-landfill harmless treatment of multi-source solid waste is characterized by: The water-solid gas-smoke self-purification unit (B) is composed of a hot air furnace (B1), a drying tower (B2), a second conveying device (B3), a powder storage bin (B4), a dry powder press (B5), a bag dust collector (B6), a condenser (B7) and a cooling water pool (B8); the solid waste slurry obtained by grinding in the high-temperature grinding unit (A) is sprayed into the drying tower (B2) at high pressure through a pump suction device, and is heated, dried and granulated through the hot air furnace (B1). The formed dry powder is transported to the powder storage bin (B4) through the second conveying device (B3), and then pressed into a solid waste dry powder embryo by the dry powder press (B5); and the smoke generated during the heating and drying process of the solid waste slurry in the drying tower (B2) is output to the bag dust collector (B6) for dust removal and purification, and the remaining water vapor in the smoke is then output to the condenser (B7) for cooling to form condensed water, which is discharged into the cooling water pool (B8).

3. The complete set of technical equipment for zero-landfill harmless treatment of multi-source solid waste according to claim 1 or 2, characterized in that: The high temperature grinding unit (A) is composed of a mixer (A1), a first conveying device (A2), a wet ball mill (A3), a mud pool (A4) and a mud barrel (A5). The mixer (A1) mixes and shreds the input multi-source solid waste into a mixture, and then conveys the mixture to the wet ball mill (A3) through the first conveying device (A2) for grinding with water. After being slurried into solid waste mud, it is transferred to the mud barrel (A5) through the mud pool (A4) for storage, and the mud barrel (A5) is equipped with a stirrer to stir the solid waste mud in the mud barrel (A5).

4. According to claim 3, the complete set of technical equipment for harmless treatment of multi-source solid waste without landfill is characterized by: The sintering treatment unit (C) uses a roller kiln heated by natural gas, and the roller kiln is equipped with a gas extraction device, which passes the gas extracted from the roller kiln into the mud barrel (A5).

5. According to claim 4, the complete set of technical equipment for zero-landfill harmless treatment of multi-source solid waste is characterized by: The roller kiln is divided into a drying section, a preheating section, a firing section, a rapid cooling section, an indirect cooling section and a strong cooling section from the feeding of solid waste dry powder embryos to the discharge of resource products. The drying section, the preheating section and the firing section are provided with high-temperature burners whose combustion temperatures are successively increased. The rapid cooling section is provided with a heat exchange device. The exhaust device extracts air from the indirect cooling section. The strong cooling section is located outside the furnace of the roller kiln.

6. According to claim 5, the complete set of technical equipment for zero-landfill harmless treatment of multi-source solid waste is characterized by: The intelligent control unit (D) includes an equipment automation control system, a pressure control system and a temperature control system; The equipment automation control system controls the high-temperature grinding unit (A), the water-solid gas and fume self-purification unit (B) and the sintering treatment unit (C) to start and stop working according to a preset process, and displays the equipment operation status of the high-temperature grinding unit (A), the water-solid gas and fume self-purification unit (B) and the sintering treatment unit (C) on a display device; The pressure control system monitors the pressure in the roller kiln through a pressure sensor installed in the sintering treatment unit (C), and controls the amount of natural gas injected into the high-temperature burner according to the pressure monitoring result; The temperature control system monitors the temperature in the roller kiln through a temperature sensor installed in the sintering treatment unit (C), and controls the natural gas injection amount of the high-temperature burner according to the temperature monitoring result.

7. The complete set of technical equipment for zero-landfill harmless treatment of multi-source solid waste according to claim 6 is characterized by: The intelligent control unit (D) also includes a metering system; the metering system measures the water consumption, electricity consumption, gas consumption, raw and auxiliary material consumption and resource product output of the high-temperature grinding unit (A), the water-solid gas-fume self-purification unit (B) and the sintering disposal unit (C) through a water meter, an electricity meter, a gas meter and a weight sensor, and transmits the metering data to a control center.

8. The complete set of technical equipment for zero-landfill harmless treatment of multi-source solid waste according to claim 6 is characterized by: The intelligent control unit (D) also includes an online pollution monitoring system and an alarm system; the online pollution monitoring system is used to monitor gas pollution at the site where the complete set of technical equipment for zero landfill and harmless treatment of multi-source solid waste is located, and the alarm system receives the working data of the automation control system, the pressure control system, the temperature control system, the metering system and the online pollution monitoring system respectively, and determines whether a preset safety problem occurs based on the received working data, and issues an alarm when the judgment result is yes.

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