CN214515268U

CN214515268U - Preliminary sorting system of biomass incineration power plant slag

Info

Publication number: CN214515268U
Application number: CN202120527619.3U
Authority: CN
Inventors: 文传林
Original assignee: Sichuan Sichuang Biological Environmental Protection Technology Co ltd
Current assignee: Chengdu Lantau Blue Environmental Protection Technology Co ltd
Priority date: 2021-03-12
Filing date: 2021-03-12
Publication date: 2021-10-29
Anticipated expiration: 2031-03-12

Abstract

The utility model discloses a below of preliminary sorting system storage silo of biomass incineration power plant slag is the discharge gate, the discharge gate is located ejection of compact belt top, ejection of compact belt's ejection of compact point is located the transfer belt, the transfer belt is carried the material to the drying-machine, the discharge gate and the first husky ke long of drying-machine are connected, husky ke long's material export is connected with mud stone sorting unit, biomass fuel power plant's slag has obtained the biggest utilization, through the mode of sorting, the article that obtain can make the best of things, electric power cause to china, the environmental protection cause has very big promotion effect.

Description

Preliminary sorting system of biomass incineration power plant slag

Technical Field

The utility model relates to a msw incineration field, concretely relates to preliminary sorting system of biomass incineration power plant slag.

Background

The biomass power generation is power generation by using biomass energy of biomass, is one of renewable energy power generation, and comprises direct combustion power generation of agricultural and forestry waste, gasification power generation of agricultural and forestry waste, waste incineration power generation, landfill gas power generation and methane power generation. World biomass power generation originated in the 70 th 20 th century, and when global oil crisis had broken out, danish began to actively develop clean renewable energy and vigorously pursue biomass power generation such as straw. Since 1990, biomass power generation has begun to grow vigorously in many countries in europe and america.

The garbage power generation comprises garbage incineration power generation and garbage gasification power generation, the problem of garbage disposal can be solved, meanwhile, the energy in the garbage can be recycled, resources are saved, and the garbage incineration power generation is that the heat emitted by the garbage in an incineration boiler is utilized to heat water to obtain superheated steam to push a steam turbine to drive a generator to generate power. The garbage burning technology mainly comprises a layered combustion technology, a fluidized bed combustion technology, a rotary combustion technology and the like. The developed gasification and melting incineration technology comprises two processes of gasification of garbage at the temperature of 450-640 ℃ and melting combustion of carbon-containing ash at the temperature of more than 1300 ℃, the garbage is thoroughly treated and the process is clean, partial resources can be recycled, and the gasification and melting incineration technology is considered to be the garbage power generation technology with the greatest prospect.

The slow development of garbage power generation is mainly limited by some technical or technological problems, for example, the highly toxic waste gas generated by combustion during power generation can not be effectively solved for a long time. A super garbage power generation technology is popularized in Japan, a novel gas smelting furnace is adopted, the temperature of the furnace is raised to 500 ℃, the power generation efficiency is also improved to about 25% from the past general 10%, and the discharge amount of toxic waste gas is reduced to within 0.5%, which is lower than the international specified standard. Of course, the cost of garbage power generation is still higher than that of conventional thermal power generation. Experts think that along with the continuous development of technologies in all links such as garbage recycling, processing, transportation, comprehensive utilization and the like, the process is scientific and advanced day by day, and a garbage power generation mode is likely to become one of the most economical power generation technologies. The long-term benefit and comprehensive index are better than the traditional power production. Garbage power generation in China just starts, but the prospect is optimistic. The harmful substances generated by the waste incineration power generation include that the smoke pollution is concerned about dioxin, waste water and waste leachate generated in the incineration process, and ash and dust are also concerned, but the pollution control of most of the waste incineration power generation in China reaches the standard basically. The project deslagging system adopts ash slag separation and dry ash dry discharge modes. The slag can be directly and comprehensively utilized or buried, and the slag conveying system adopts a mechanical slag removing mode, is conveyed to a slag bin by a scraping trigger and is transported to the outside of a factory for comprehensive utilization by a slag transporting vehicle.

At present, a large amount of waste incineration power generation is mainly performed in a biomass power plant, slag of the waste incineration power plant is generally processed in a landfill mode, a small amount of slag is also used for building materials, the economic value and the social value are not high, and the most important reason is that the slag is complex in components and difficult to sort.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide a biomass incineration power plant slag's preliminary sorting system, realize high-efficient, accurate separation slag, when improving the slag separation precision greatly, reduce the cost of selecting separately, improve the utilization level of slag.

The utility model discloses a following technical scheme realizes:

the preliminary sorting system of biomass incineration power plant slag includes the storage silo, and the below of storage silo is the discharge gate, and the discharge gate is located ejection of compact belt top, and the ejection of compact point of ejection of compact belt is located and passes on the belt, passes on the belt and carries the material to the drying-machine, and the discharge gate and the first husky ke long of drying-machine are connected, and the material export of husky ke long is connected with mud stone sorting unit. In the field of slag treatment of biomass combustion power plants, some simple sorting is available at present, iron impurities in the slag are mainly removed by using magnets, and objects such as stones with large density and mud are removed by using buoyancy of water to obtain floaters, so that the process has certain defects: the classification is simple, iron impurities can be removed, and other metals cannot be removed; the floating mixture of charcoal and wood cannot be utilized, and needs to be aired or dried when being burnt; stone can be used as building material, but the utilization rate is not high; the mud is mixed in the water, and the sediment can be obtained through the sedimentation tank, so that the water can be recycled, but the waste consumption rate is high; the sediment can not be utilized, the occupied area is large, and the sediment can not be directly utilized. These problems are the defects of the wet separation in the prior art, and the inventors of the present invention have found many findings after many studies on the slag of biomass-fired power plants: the slag is a mixture containing iron, metal, stone, soil, carbon, wood and dust, and the mixture is put together, if the mixture is directly used for landfill, the mixture can generate heat after the organic substances are decomposed by the action of time, and the problem of collapse also exists; how to sort the slag with good quality is always a problem; after the inventor analyzes the slag, the inventor discovers that the carbon in the slag is a raw material and has the value of recycling, such as the carbon used for producing smokeless carbon and barbecue carbon for dining and drinking, and the carbon needs no soil, stone and wood inside the carbon, in order to screen the carbon in the slag, the biomass combustion slag of the sorting system is developed in the experimental process of many years, after the biomass combustion slag of the sorting system is transported back from a power plant and is generally stacked, when the biomass combustion slag is used, the biomass combustion slag is firstly put into a storage bin, a discharge hole is arranged below the storage bin, a discharge belt is arranged below the discharge hole, the discharge point of the discharge belt is positioned on the transfer belt, two transmission devices are respectively and independently operated and controlled by arranging the separate discharge belt and the transfer belt, the flow of the discharge belt can be controlled only by controlling the rotating speed of the discharge belt, and thus the feeding amount of the whole production system can be conveniently controlled, guarantee the ability of selecting separately and obtain the biggest use, accumulational problem has been avoided again, the material that the drying-machine will receive is dried the operation, generally adopt the mode of cylinder drying-machine, be convenient for install and use in certain space range, also can adopt different types of drying-machine, the purpose of drying-machine is dried slightly moist slag, the sorting action of going after being convenient for, be the important component part of dry process screening, the slag after the stoving contains the material of large granule heavy weight, also contain the dust, carry out the screening of two parts through sending into first husky dragon: big massive lump of granule falls from the below of shakelong, the dust package is the mixture also, include earth, dust, and powdered carbon, these materials can't carry out further separation, must all separate out and collect, accomplish the slag material of preliminary separation, send into mud stone sorting unit, through the separation of preliminary separation system, big stone has effectively been got rid of, mud piece and other proportion, the impurity that weight is big, preparation has been done for subsequent separation work, the big stone of separation is the useful material in building material field, can be used for operations such as backfill.

Further, still be provided with a magnet adsorption device on the transfer belt, magnet adsorption device includes a frame, is provided with a magnet in the frame, encircles magnet and is provided with the magnet belt, is provided with the blend stop of protrusion in the magnet belt at the magnet belt. The biomass incinerator slag contains iron impurities, such as iron nails, nuts and the like, the quantity of the objects is not small, the elements are guaranteed to be screened out in the future, and the subsequent sorting work is guaranteed, the inventor arranges a frame above a transfer belt, the frame is provided with a magnet, a circle of iron attracting belt is arranged on the frame, the iron attracting belt is arranged around the magnet, when in use, the iron attracting belt is positioned above a conveying belt, the iron attracting belt is driven to rotate by a driving motor, the biomass incinerator slag is conveyed to a dryer under the conveying action of the conveying belt, the iron impurities in the slag are upwards adsorbed by the adsorption force of the magnet and are attached to the iron attracting belt, the iron impurities are taken out of the slag after the iron attracting belt rotates, and the iron impurities and the iron attracting belt possibly move relatively due to the fact that the distribution of the magnetic force is not uniform, the magnetic force at the edge is smaller than the magnetic force at the middle part, the phenomenon of moving to the lower part of the magnet, the movement of the iron-containing impurities is prevented by arranging the barrier strips protruding out of the iron-attracting belt, under the condition that the magnetic force is not enough to adsorb at the edge part, the iron and the iron-containing impurities fall off to be separated from the iron-attracting belt, and the collected scrap iron is also a recyclable resource and has high economic value.

Further, the specification of a discharge hole at the bottom of the first shakelong is 3 cm. The inventor adjusts the parameters of the first salxolone in the actual production process, and researches and searches for many years show that when the first salxolone is screened by taking the particle size of 3CM as a standard, the subsequent sorting work is very smooth when the first salxolone screens all blocks with the particle size of more than 3 CM.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

1. the utility model discloses biomass incineration power plant slag's preliminary sorting system is the important component part of dry process screening, and the slag after the stoving contains the material of large granule heaviness, also contains the dust, carries out the screening of two parts through sending into first husky ke long: the large-particle heavy-weight blocks fall from the lower part of the shakelong, the dust bag is also a mixture and contains soil, dust and carbon powder, the substances cannot be further separated and must be completely separated and collected, the primarily separated slag materials are sent to a mud stone separation device, large stones, mud blocks and other impurities with large specific gravity and weight are effectively removed through the separation of a primary separation system, preparation is made for subsequent separation work, and the separated large stones are useful materials in the field of building materials and can be used for backfilling and other operations;

2. compared with the wet separation process in the prior art, the primary separation system for the furnace slag of the biomass incineration power plant has higher separation precision of the furnace slag, more diversified products and a plurality of guiding functions for future development of the industry;

3. the utility model discloses preliminary sorting system of biomass incineration power plant slag, set up a frame above the conveyer belt, a magnet of shelf location, set up round magnet belt in the frame, magnet belt encircles the magnet setting, when using, magnet belt is located conveyer belt top, drive magnet belt through driving motor and rotate, biomass incineration slag transports to the drying-machine under conveyer belt's transportation effect, the adsorption affinity of magnet adsorbs the impurity that contains iron in the slag upwards, paste on magnet belt, magnet belt rotates the back, take iron impurity out from the slag, because the distribution of magnet magnetic force is inhomogeneous, the magnetic force at the edge is less than the magnetic force at middle part, it can appear that impurity and magnet belt produce relative motion, the phenomenon that moves to the magnet below, the inventor has prevented the motion of iron impurity through setting up the blend stop of protrusion in magnet belt, in the edge part, under the condition that the magnetic force is not enough to adsorb, iron and iron-containing impurities fall off to separate from the iron-absorbing belt, and the collected scrap iron is also a recyclable resource and has high economic value.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

FIG. 1 is a schematic view of the present invention;

fig. 2 is a schematic structural diagram of the magnetic attraction device in fig. 1.

Reference numbers and corresponding part names in the drawings:

1-a preliminary sorting system, 11-a storage bin, 12-a discharging belt, 13-a transfer belt, 14-a dryer, 15-a magnet adsorption device, 16-a first saxolone, 151-a rack, 152-a magnet, 153-an iron adsorption belt, 154-a barrier strip;

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Examples

As shown in fig. 1 to 2, the primary sorting system of biomass incineration power plant slag of the present invention comprises a primary sorting system 1, a mud stone sorting device 2, and a charcoal wood sorting device 3, wherein the primary sorting system 1 comprises a storage bin 11, the storage bin 11 is funnel-shaped, the lower opening thereof is located on a discharging belt 12, the particles of the mixture output from the discharging belt 12 are all less than 5CM, the discharging point of the discharging belt 12 is located on a transferring belt 13, by arranging the separated discharging belt 12 and the transferring belt 13, the two transmission devices are respectively operated and controlled independently, only by controlling the rotating speed of the discharging belt 12, the flow rate of the discharging can be controlled, a magnet adsorption device 15 is further arranged on the transferring belt 13, the magnet adsorption device 15 comprises a frame 151, a magnet 152 is arranged on the frame 151, a circle of iron adsorption belt 153 is arranged on the frame 151, the magnet belt 153 is arranged around the magnet 152, the magnet belt 153 is positioned above the conveyor belt 13, the magnet belt 153 is driven to rotate by a driving motor, the biomass incineration slag is conveyed to the dryer 14 under the conveying action of the conveyor belt 13, impurities containing iron in the slag are upwards adsorbed by the adsorption force of the magnet 152 and are attached to the magnet belt 153, the iron impurities are taken out of the slag after the magnet belt 153 rotates, the magnetic force at the edge is smaller than that at the middle part due to uneven distribution of the magnetic force, the barrier strips 154 protruding out of the magnet belt 153 prevent the movement of the iron impurities, the iron and the iron impurities fall off and are separated from the magnet belt 153 under the condition that the magnetic force at the edge is not enough to adsorb, and the collected waste iron is also a recyclable resource; the barrier strip 154 may be a part additionally arranged on the iron-attracting belt 153, or may be an integral structure with the iron-attracting belt 153; the dryer 14 may be a drum-type hot air dryer or may be replaced with a different type; a discharge port of the dryer 14 is connected with a first cyclone 16, and the specification of the discharge port of a discharge port at the bottom of the first cyclone 16 is 3 cm; setting the working parameters of the first shakelong 16 to ensure that the parameter particle size of the discharged material at the bottom of the first shakelong is 3 cm; according to specific production environment and national environmental protection requirements, a plurality of saxolone can be arranged for eliminating environmental pollution, and the conventional equipment in the embodiment can be adjusted and replaced by common equipment.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. Preliminary sorting system of biomass incineration power plant slag, its characterized in that includes storage silo (11), the below of storage silo (11) is the discharge gate, the discharge gate is located ejection of compact belt (12) top, the ejection of compact point of ejection of compact belt (12) is located on the transfer belt (13), transfer belt (13) are carried the material to drying-machine (14), the discharge gate and first husky ke long (16) of drying-machine (14) are connected, the material export and the mud stone sorting unit (2) of husky ke long are connected.

2. The primary sorting system for biomass-fired power plant slag according to claim 1, characterized in that: the transfer belt (13) is also provided with a magnet adsorption device (15), the magnet adsorption device (15) comprises a rack (151), a magnet (152) is arranged on the rack (151), an iron adsorption belt (153) is arranged around the magnet (152), and a barrier strip (154) protruding out of the iron adsorption belt (153) is arranged on the iron adsorption belt (153).

3. The primary sorting system for biomass-fired power plant slag according to claim 2, characterized in that: the barrier strip (154) is fixedly arranged on the iron-absorbing belt (153) through a fixing piece, or the barrier strip (154) and the iron-absorbing belt (153) are of an integrated structure.

4. The primary sorting system for biomass-fired power plant slag according to claim 2, characterized in that: the specification of a discharge hole at the bottom of the first shakelong (16) is 3 cm.