Funeral parlor dust collector ash trapping and harmless treatment equipment

Abstract

The utility model provides a kind of funeral parlor dust catcher capture ash harmless treatment equipment, including the storage device with multiple bins for storing fly ash, cement, chelating agent, water, foaming agent, binder and adjusting agent, the outlet of storage device is connected with mixing and stirring device by discharging metering device, mixing and stirring device outlet is connected with granulator, the outlet of granulator is connected with sintering furnace;Mixing and stirring device is stirred to fly ash, cement, chelating agent and water in it to form fly ash mixture, mixing and stirring device is stirred evenly to fly ash mixture, foaming agent, binder and adjusting agent in it, and output to granulator to be granulated into ball, pellet of granulating into ball is entered into sintering furnace to carry out low-temperature sintering, produced fly ash-based light material has the advantages of light weight, heat preservation, heat insulation, moderate strength etc., can be widely applied to building thermal insulation concrete, light block, soilless culture, water treatment filter material and other fields, economic value is much higher than paving brick and renovating flower bed brick.

Description

Technical Field

[0001] This utility model belongs to the field of funeral services, specifically relating to a dust collector in a funeral home that collects and harmlessly treats ash. Background Technology

[0002] As a special national public service industry, the environmental pollution caused by cremation in the funeral industry has gradually attracted attention from all sectors of society. my country has imposed strict restrictions on the emission of pollutants such as smoke, sulfur dioxide, nitrogen oxides, carbon monoxide, dioxins, and smoke opacity. However, the secondary fly ash pollution and disposal management issues generated by dust collectors in flue gas purification systems have also arisen.

[0003] CN202010321142.3 discloses a fly ash solidification device for funeral homes, which uses silicate cement to solidify incineration fly ash. After the fly ash is mixed into the silicate cement matrix in a fixed proportion, under certain conditions, a series of physical and chemical reactions reduce the migration rate of pollutants in the silicate cement matrix system. This cement solidification technology solidifies ash collected in funeral homes, using only cement without adding chelating agents. While it can achieve basic physical shaping and partial heavy metal stabilization, the stabilization of heavy metals such as mercury (Hg), arsenic (As), and some organolead / cadmium compounds is incomplete. When the solidified body is exposed to acid rain (pH = 4-5) or the organic acid environment of landfills, there is a risk of leaching.

[0004] In addition, the fly ash that has been solidified in the existing way is usually transported to landfills for landfilling, or connected to brick-making machines for brick making (or molding). The finished bricks can be used for paving roads or repairing flower beds, but this method of landfilling, paving roads, and repairing flower beds has low economic value. Utility Model Content

[0005] To address the technical problems existing in the prior art, the first aspect of this utility model is to provide a dust collector for the harmless treatment of ash collected in funeral homes.

[0006] In this embodiment of the invention, the dust collector for a funeral home includes a storage device, a feeding and metering device, a mixing and stirring device, a granulator, and a sintering furnace. The outlet of the storage device is connected to the inlet of the mixing and stirring device via the feeding and metering device. The outlet of the mixing and stirring device is connected to the granulator, and the outlet of the granulator is connected to the sintering furnace. The storage device includes a fly ash silo for storing fly ash, a cement silo for storing cement, a chelating agent silo for storing chelating agents, a water tank for storing water, a foaming agent silo for storing foaming agents, a binder silo for storing binders, and a regulator silo for storing regulators. The inlet of the ash silo is connected to the outlet of the bag filter dust collector via a conveying device, which is used to transport the fly ash from the bag filter dust collector to the fly ash silo. The feeding and metering device is used to measure the weight of fly ash, cement, chelating agent, water, foaming agent, binder and regulator entering the mixing and stirring device and to control the output weight of various materials. The mixing and stirring device stirs the fly ash, cement, chelating agent and water to form a fly ash mixture. The mixing and stirring device stirs the fly ash mixture, foaming agent, binder and regulator evenly and outputs it to the granulator to granulate into pellets. The granulated pellets enter the sintering furnace for low-temperature sintering.

[0007] Compared with the prior art, the beneficial effects of the superior technical solution of this utility model include:

[0008] 1. This utility model abandons the traditional brick-making machine and uses a chelated and solidified fly ash mixture (fly ash + cement + chelating agent + water) as the main raw material. Appropriate amounts of foaming agent (such as aluminum powder, hydrogen peroxide), binder (such as clay, bentonite) and regulator (such as fly ash, slag powder) are added and fed into a granulator to form pellets. Then, the pellets are sent to a rotary kiln or sintering furnace for low-temperature sintering to finally obtain fly ash-based lightweight granules. The produced fly ash-based lightweight materials have the advantages of being lightweight, heat-insulating, heat-resistant, and having moderate strength. They can be widely used in building insulation concrete, lightweight blocks, hydroponics, water treatment filter media, and other fields. Their economic value is far higher than that of direct landfill, paving bricks, and flower bed bricks.

[0009] 2. When sintering at low temperature in the sintering furnace, the sintering temperature is as high as 800-1100℃. The high temperature completely decomposes dioxins, which is significantly better than solidification at room temperature and completely eliminates the risk of persistent organic pollutants. Moreover, at high temperature, heavy metals are encapsulated or form stable mineral phases, resulting in extremely low leaching toxicity and more robust heavy metal stabilization. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of the dust collector for the harmless treatment of ash in a funeral home, as described in this embodiment.

[0011] The reference numerals in the accompanying drawings include: bag filter 10, conveying device 20, FU chain conveyor 21, bucket elevator 22, fly ash silo 31, cement silo 32, chelating agent silo 33, water tank 34, foaming agent silo 35, binder silo 36, regulator silo 37, conveying pipe 381, water pipe 382, ​​discharge pipe 383, discharge metering device 40, mixing and stirring device 50, granulator 60, and sintering furnace 70. Detailed Implementation

[0012] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0013] This embodiment provides a device for the harmless treatment of ash collected by a dust collector in a funeral home, such as... Figure 1 As shown, in a preferred embodiment, the processing equipment includes a storage device, a feeding and metering device 40, a mixing and stirring device 50, a granulator 60, and a sintering furnace 70. The outlet of the storage device is connected to the inlet of the mixing and stirring device 50 through the feeding and metering device 40. The outlet of the mixing and stirring device 50 is connected to the granulator 60, and the outlet of the granulator 60 is connected to the sintering furnace 70. The mixing and stirring device 50 is a chelation mixing tank in the prior art, the granulator 60 is a molding machine in the prior art that manufactures materials into a specific shape (such as granules), and the sintering furnace 70 is a machine in the prior art used for high-temperature drying and shaping of granules. The mixing and stirring device 50, the granulator 60, and the sintering furnace 70 all adopt prior art and are not innovative points of this utility model; their structures and principles are not detailed here.

[0014] The storage device includes a fly ash silo 31 for storing fly ash, a cement silo 32 for storing cement (such as ordinary acid-base cement), a chelating agent silo 33 for storing chelating agents (such as Na2S, NaH2PO4, SDD / DTC, EDA / 2DTC), a water tank 34 for storing water, a foaming agent silo 35 for storing foaming agents (such as aluminum powder, hydrogen peroxide), a binder silo 36 for storing binders (such as clay, bentonite), and a regulator silo 37 for storing regulators (such as fly ash, slag powder). The inlet of the fly ash hopper 31 is connected to the outlet of the bag filter 10 via a conveying device 20. The conveying device 20 is used to transport the fly ash (also known as collected ash) in the bag filter 10 to the fly ash hopper 31. The inlet of the fly ash hopper 31 is higher than the outlet of the bag filter 10. The conveying device 20 includes an FU chain conveyor 21 connected to the outlet of the bag filter 10 and a bucket elevator 22 connected to the outlet of the FU chain conveyor 21. The outlet of the bucket elevator 22 is connected to the inlet of the fly ash hopper 31.

[0015] The feeding and metering device 40 is located between the storage device and the mixing and agitating device 50. The feeding and metering device 40 measures the weight of fly ash, cement, chelating agent, water, foaming agent, binder, and regulator entering the mixing and agitating device 50 and controls the output weight of each material. Preferably, the storage device is located above the feeding and metering device 40, and the material in the storage device enters the mixing and agitating device 50 by gravity.

[0016] The mixing and stirring device 50 mixes the fly ash, cement, chelating agent and water to form a fly ash mixture. The mixing and stirring device 50 mixes the fly ash mixture, foaming agent, binder and regulator evenly and outputs it to the granulator 60 to granulate into pellets. The granulated pellets enter the sintering furnace 70 for low-temperature sintering.

[0017] Fly ash collected by multiple bag filters 10 is conveyed to the FU chain conveyor 21 via a star-shaped discharge valve, and then sent to the fly ash silo 31 by the FU chain conveyor 21 and the bucket elevator 22 for later use. From the fly ash silo 31, a fixed amount of fly ash is conveyed to the mixing and stirring device 50 via a star-shaped valve (mainly used to control uniform feeding) and a feeding metering device 40. A fixed amount of water, cement, and chelating agent are added, and the mixing and stirring device 50 continuously stirs the mixture until it is homogeneous, forming a fly ash mixture. Next, a fixed amount of foaming agent, binder, and regulator are added, and the mixing and stirring device 50 continuously stirs the fly ash mixture, foaming agent (such as aluminum powder or hydrogen peroxide), binder (such as clay or bentonite), and regulator (such as fly ash or slag powder) until homogeneous. The mixture from the lower outlet of the mixing and stirring device 50 enters the granulator 60 via a valve for granulation (different granulators can be used to produce granules of different sizes). The granulated material then enters the sintering furnace 70 or a rotary kiln for low-temperature sintering (800-1100℃), ultimately yielding fly ash-based lightweight granules. The produced fly ash-based lightweight material possesses advantages such as light weight, heat insulation, thermal insulation, and moderate strength, and can be widely used in building insulation concrete, lightweight blocks, hydroponics, water treatment filter media, and other fields. Its economic value far exceeds that of direct landfill, paving bricks, and flower bed bricks.

[0018] All raw materials are added uniformly to the mixing and stirring device 50 according to the formula and stirred evenly. For the fly ash mixture, the cement addition is 20%-25%, the chelating agent addition is 2%-3%, and the total water addition is 30% of the sum of the mass of fly ash, cement, and chelating agent; the addition amounts of foaming agent, binder, and regulator are determined experimentally.

[0019] In this invention, there is one feeding and metering device 40. The outlets of the fly ash silo 31, cement silo 32, chelating agent silo 33, water tank 34, foaming agent silo 35, binder silo 36, and regulator silo 37 are all connected to the feeding and metering device 40 through a feeding pipe 383 equipped with a feeding valve (star valve); or, one feeding and metering device 40 is connected to the outlet of each of the fly ash silo 31, cement silo 32, chelating agent silo 33, water tank 34, foaming agent silo 35, binder silo 36, and regulator silo 37. Quantitative feeding via the feeding and metering device 40 is existing technology and will not be described in detail here.

[0020] In this utility model, the inlet of the cement silo 32 is connected to a cement pump located on the ground via a conveying pipe 381. Figure 1 (Not shown in the image) is connected to the cement silo 32, and the cement is pressurized by the cement pump and then lifted and transported to the cement silo 32; the inlet of the chelating agent silo 33 is connected to the chelating agent pump located on the ground via the conveying pipe 381. Figure 1 (Not shown in the image) is connected, and after being pressurized by the chelating agent pump, the chelating agent is lifted and transported to the chelating agent tank 33; the inlet of the water tank 34 is connected to the faucet (not shown in the image) through a water pipe 382 equipped with a water valve. Figure 1 (Not shown in the image) is connected; the inlets of the foaming agent tank 35, the binder tank 36, and the conditioner tank 37 are all connected to three feed pumps located on the ground via feed pipes 381. Figure 1 (Not shown in the image) are connected separately, and the material is pressurized by a conveying pump and then lifted and transported to the foaming agent silo 35, the binder silo 36, and the regulator silo 37. The material is pressurized and lifted by a cement pump, chelating agent pump, and conveying pump, which are existing methods and will not be described in detail here.

[0021] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A dust collector for funeral homes, used for the harmless treatment of collected ash, characterized in that... It includes a storage device, a feeding and metering device, a mixing and stirring device, a granulator, and a sintering furnace. The outlet of the storage device is connected to the inlet of the mixing and stirring device through the feeding and metering device. The outlet of the mixing and stirring device is connected to the granulator. The outlet of the granulator is connected to the sintering furnace. The storage device includes a fly ash silo for storing fly ash, a cement silo for storing cement, a chelating agent silo for storing chelating agents, a water tank for storing water, a foaming agent silo for storing foaming agents, a binder silo for storing binders, and a regulator silo for storing regulators. The inlet of the fly ash silo is connected to the outlet of the bag filter dust collector via a conveying device, which is used to convey the fly ash in the bag filter dust collector to the fly ash silo. The feeding and metering device is used to measure the weight of fly ash, cement, chelating agent, water, foaming agent, binder and regulator entering the mixing and stirring device and to control the output weight of various materials. The mixing and stirring device stirs the fly ash, cement, chelating agent and water to form a fly ash mixture. The mixing and stirring device then stirs the fly ash mixture, foaming agent, binder and regulator evenly and outputs it to the granulator to granulate into pellets. The granulated pellets enter the sintering furnace for low-temperature sintering.

2. The funeral home dust collector ash collection and harmless treatment equipment according to claim 1, characterized in that, The number of the feeding metering device is one, and the outlets of the fly ash silo, cement silo, chelating agent silo, water tank, foaming agent silo, binder silo and regulator silo are all connected to the feeding metering device through feeding pipes equipped with feeding valves; Alternatively, a feeding metering device can be connected to the outlet of each of the fly ash silo, cement silo, chelating agent silo, water tank, foaming agent silo, binder silo, and regulator silo.

3. The funeral home dust collector ash collection and harmless treatment equipment according to claim 1, characterized in that, The storage device is located above the feeding and metering device, which is located above the mixing and stirring device. The material in the storage device enters the mixing and stirring device by gravity.

4. The funeral home dust collector ash collection and harmless treatment equipment according to claim 1, characterized in that, The inlet of the fly ash silo is higher than the outlet of the bag filter. The conveying device includes a FU chain conveyor connected to the outlet of the bag filter and a bucket elevator connected to the outlet of the FU chain conveyor. The outlet of the bucket elevator is connected to the inlet of the fly ash silo.

5. The funeral home dust collector ash collection and harmless treatment equipment according to claim 1, characterized in that, The cement silo's inlet is connected to a cement pump located on the ground via a conveying pipe. The cement is pressurized by the cement pump and then lifted and transported into the cement silo.

6. The funeral home dust collector ash collection and harmless treatment equipment according to claim 1, characterized in that, The inlet of the chelating agent tank is connected to a chelating agent pump located on the ground via a conveying pipe. After being pressurized by the chelating agent pump, the chelating agent is lifted and transported to the chelating agent tank.

7. The funeral home dust collector ash collection and harmless treatment equipment according to claim 1, characterized in that, The inlet of the water tank is connected to a faucet via a water pipe equipped with a water valve.

8. The funeral home dust collector ash collection and harmless treatment equipment according to claim 1, characterized in that, The inlets of the foaming agent silo, binder silo, and regulator silo are all connected to three feed pumps located on the ground via feed pipes. After being pressurized by the feed pumps, the materials are lifted and transported to the foaming agent silo, binder silo, and regulator silo.

Images