CN215277920U - Sorting system for biomass combustion furnace slag - Google Patents

Abstract

The utility model discloses a sorting system of biomass combustion furnace slag, which comprises the steps of iron removal, drying, tertiary sorting, rolling, screening and the like, wherein the screened products have all use values, dust and particles with small particle size of less than 20 meshes are used for producing organic fertilizers, and carbon is the main source of the organic fertilizers; the stones with medium grain size, namely stones with the grain size of more than 20 meshes and less than 3CM are good building materials and cultivation materials for gardening, the large stones are building materials, the recovered iron also has the commercial value of recycling, the problem of sewage treatment does not exist, secondary pollution does not exist, good market benefits and social benefits are achieved, the slag of the biomass fuel power plant is utilized to the maximum extent, the obtained articles can be used to the full extent in a sorting mode, and the method has a great promotion effect on the electric power industry and the environmental protection industry of China.

Description

Sorting system for biomass combustion furnace slag

Technical Field

The utility model relates to a waste incineration field, concretely relates to sorting system of biomass combustion 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 separation system of biomass combustion slag, 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 sorting system of the biomass combustion furnace slag comprises a preliminary sorting system, a mud stone sorting device and a charcoal wood sorting device which are sequentially connected. 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 carbon in the slag is found to be a raw material and has recycling value, such as the carbon used for producing smokeless carbon, barbecue carbon for dining and drinking and the like, and the carbon of the type needs no soil, stones and wood inside the carbon, in order to screen out the carbon in the carbon, in the process of many years of experiments, the sorting system of the utility model is developed, the slag is primarily screened through a primary sorting system, the large-particle-diameter and large-weight parts in the slag are removed, the mixture with the obtained particle diameter is sent to a mudstone sorting device, the mudstone sorting device removes the stone of small-particle mixture and medium-particle which can not be sorted in the slag to obtain the carbon-wood mixture, then the carbon and the wood in the slag are sorted through the carbon-wood sorting device, and the biomass fuel incineration slag can be sorted into a plurality of products through the series of operations, the mixture of dust and small particles which is screened out can be used for preparing biological organic fertilizer because the mixture contains carbon powder, wood dust, soil, sand and other components; the screened small-particle-size stones can be used for plant planting and can serve as vermiculite due to uniform particle size, and the price cost is greatly lower than the development cost of the vermiculite; the wood particles obtained by sorting can be used for secondary combustion or used as raw materials of biological fertilizers, and the process of the utility model discloses after the technology, the slag of the biomass fuel power plant obtains the biggest utilization, and through the mode of sorting, the obtained article can make the best use of things, and has very big promotion effect to the electric power cause and the environmental protection cause of China.

In particular: preliminary sorting system include the storage silo, the below of storage silo is the discharge gate, the discharge gate is located ejection of compact belt top, 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, the discharge gate and the first husky dragon of drying-machine are connected, the material export and the mud stone sorting unit of husky dragon are connected. After the biomass combustion furnace slag is transported back from a power plant and generally stacked, when the biomass combustion furnace slag is used, the biomass combustion furnace slag is firstly loaded into a storage bin, a discharge port is arranged below the storage bin, a discharge belt is arranged below the discharge port, a discharge point of the discharge belt is positioned on a transfer belt, two transmission devices are respectively and independently operated and controlled, the flow rate of discharged materials can be controlled only by controlling the rotating speed of the discharge belt, so that the feeding quantity of the whole production system can be conveniently controlled, the maximum use of the sorting capacity is ensured, the problem of accumulation is avoided, the drying operation of the materials collected by a dryer is generally carried out, a roller dryer mode is generally adopted, the biomass combustion furnace slag is convenient to install and use in a certain space range, different types of dryers can also be adopted, and the purpose of the dryer is to dry slightly wet furnace slag, the sorting action of going after being convenient for 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 saxolone: 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.

Specifically speaking, mud stone sorting unit include the vibration descaling machine, the vibration descaling machine connect the material mouth to be connected with the delivery outlet of tentatively sorting the system, there is the vibration cleaning screen cloth vibration descaling machine inside, the bottom of vibration descaling machine is formed with a fine particle discharge gate, a well granule discharge gate, well granule discharge gate passes through the entry linkage of conveying equipment with the destoner, there is a jump sieve destoner the inside, the bottom of destoner forms a stone discharge gate, a non-stone discharge gate. The slag after the primary separation system separation has removed the impurities with large particle size, has left the mixture of medium particle and fine particle, from the species, contain soil, dust, charcoal, wood, in order to further carry on the screening to the target product charcoal, the inventor has made many experiments, carry on the second separation through adopting the vibration cleaner finally, the vibration cleaning screen inside the vibration cleaner sorts the mixed material according to the size of particle size, the fine mixture among them is discharged through the discharge port of fine particle, this part of mixture because the particle size of charcoal, soil, stone among them is very small, even close to the dust, can't carry on the re-separation, so all separate, used for preparing organic fertilizer, and this part of separated small particle mixture is dry, in the prior art that utilizes water to select, this part of slag particle of particle size is in water, after sedimentation, a sediment is formed; if the sediments are to be utilized and the sediments are to be dried for possible use, the material mixture of the medium particles is obtained from the medium particle discharge port; the mixture comprises small stones, charcoal and wood, then the stones are separated by a stone separator, a jump sieve in the stone separator separates the stones, the grain diameter of stones discharged from a stone discharge port is uniform and not large or small, the stones are similar to vermiculite, and the stone separator can be used in the field of plant cuttage cultivation and planting; and discharging the obtained mixture of the charcoal and the wood from a non-stone discharge port, so that the subsequent charcoal and wood separation is facilitated, and the target product charcoal powder is obtained.

Further, the vibration cleaning screen of the vibration cleaning machine is 20-22 meshes in specification. The inventor finds in practical production experiments that slag particles, carbon particles, soil particles and stone particles with the particle size of less than 20-22 meshes after drying have small weight difference, wind and negative pressure adsorption modes cannot be distinguished, other existing equipment cannot be directly separated, and therefore a 20-22-mesh screen is selected as a screenable standard, screening is carried out as accurately as possible, and the yield of carbon is improved.

Further, a second sand-lime is arranged on the vibration cleaning machine. Through setting up the second husky kelong, can effectively get rid of the dust in the mixture, the dry process is selected separately the process and is gathered, and the dust constantly appears, through setting up the second husky kelong, can effectively improve the purity of producing the charcoal, still reduced the pollution problem to the environment effectively.

Specifically, the charcoal wood sorting device comprises a sorting machine, a feeding port of the sorting machine is connected with a discharging port of the mud stone sorting device, and the sorting machine is internally provided with a material inletA sorting vibrating screen, sorting vibrating screen separates into two upper and lower discharge gates with the sorter, and every discharge gate is connected to one and rolls equipment, rolls the delivery outlet of equipment and is connected to independent secondary sorter. Because the charcoal is a product of wood after combustion, the density of the charcoal is relatively close, the existing method can not distinguish the charcoal from the wood, and in order to solve the problem, the inventor carries out a lot of thought and experiments, and in an accidental situation, the inventor grasps a mixture of the charcoal and the wood by hands, strongly kneads the mixture to find that the charcoal is broken, but the wood is not changed, and the inventor suddenly understands that the charcoal and the wood are different whether the wood has long fibers or not, and the wood has stronger flexibility because of the long fibers; the inventor of the invention invents a plurality of slag screening methods in the process of researching biomass slag for many years, generally the screened slag can obtain a mixture of charcoal and wood, and the charcoal can be obtained through subsequent screening; however, in the actual experimental process, the inventor finds the disadvantages of doing so: the carbon screened from the slag has different grades, and the experiment shows that: the inventor analyzes that the obtained carbon has different quality due to different combustion raw materials, and if classification can be carried out according to the combustion value of the carbon, the carbon with different quality can be obtained and can be used in different industries, so that the added value of the carbon in the slag is improved, but how to distinguish and screen is an unprecedented challenge, and the inventor researches and discovers that: in the slag, the source of charcoal is different, the main source has wood and straw, grass, combustible such as leaf, the product after burning is the grass ash, can not form charcoal, and tiny branch, saw-dust are in the incinerator, because the relation of its volume, through the incineration of same time, it is abundant to have all burnt basically, produce the ash completely, or the less charcoal of volume, its combustion value of bulky straw is not high, the combustion rate is faster than wood, through the combustion of same time, can form the grass ash, and the charcoal that partly unburnt, the granule of these charcoals is less, and in the charcoal of screening out, mainly derive from two parts: formed by burning large pieces of woodThe combustion value of the mixture of large-particle charcoal and straw charcoal with smaller particles left after the combustion of large straws is unbalanced, the source of the charcoal and the existence rule of the charcoal are analyzed through the findings, and according to the rule, the inventor selects the charcoal and the wood mixture with the particle sizes of two particles, namely the mixture of medium and small particles and the mixture of medium and large particles, before rolling the charcoal and the wood mixture by setting a separation screen mode; then the two mixtures are respectively rolled and screened to remove wood, the quality of the rest carbon powder is balanced, and the test shows that the combustion value of the carbon powder in medium and large particles is 1.6-2.5 multiplied by 10⁷J/kg; the carbon powder in the medium and small particles has a combustion value of 0.8-1.2 x 10⁷J/kg, after sorting, the charcoals with different qualities can be respectively utilized according to different combustion values, the higher the combustion value of the charcoals is, the higher the quality of the charcoals is, and the higher the economic value is, the technical scheme of the invention can realize high-efficiency and accurate sorting of the furnace slag, accurately sort the charcoals with different qualities from the biomass fuel incineration furnace slag, and greatly improve the economic benefit and the social benefit of the furnace slag by classifying the quality of the charcoals.

Further, the mesh diameter of a sorting vibrating screen in the sorting machine is 3 mm. The inventor discovers through many years of research that charcoal and balloonflower charcoal can be distinguished more accurately to the partition about 3mm, adopts current aperture to be 3 mm's mesh screen, can accurately distinguish the charcoal of high-low quality.

Further, the rolling equipment is a counter mill or a ball mill. Through equipment such as to the mill, ball mill, can roll the mixture of charcoal and timber for the charcoal is smashed to the powder that granule is littleer, and timber keeps unbroken state because it contains a large amount of fibre simultaneously, and such state is favorable to subsequent screening.

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

1. the utility model discloses separation system of biomass combustion slag, at first carry out preliminary screening with the slag through preliminary separation system, big particle diameter wherein, the part of big weight is got rid of, mud stone sorting unit is sent into to the mixture that obtains middle and small particle diameter, mud stone sorting unit gets the charcoal-wood mixture after getting rid of wherein can not the little particle mixture of sorting and the stone of mesomere, then separate out charcoal and wood wherein through charcoal-wood sorting unit, through this series of operations, can sort into a plurality of products with biomass fuel incineration slag, the dust of screening out, the little particle mixture, because wherein contain powdered carbon, the saw-dust, earth, compositions such as sand, can be used to make bio-organic fertilizer; the screened small-particle-size stones can be used for plant planting and can serve as vermiculite due to uniform particle size, and the price cost is greatly lower than the development cost of the vermiculite; the wood particles obtained by sorting can be used for secondary combustion or used as raw materials of biological fertilizers, after the process of the utility model, the slag of a biomass fuel power plant is utilized to the maximum extent, and the obtained articles can be used as the best as possible by the sorting mode, thereby having great promotion effect on the electric power industry and the environmental protection industry of China;

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

3. compared with the wet separation process in the prior art, the separation system of the biomass combustion furnace slag has higher product purity, the existing wet separation process of the furnace slag can lead to low purity of each product because small-particle furnace slag and dust can be attached to the surface of large-particle furnace slag under the action of water, and the screening process of the utility model is carried out in a dry state, so that the dust and the small particles can not be attached to the surface of large particles, thereby being beneficial to improving the purity of each product;

4. compared with the wet separation process in the prior art, the separation system for the biomass combustion furnace slag has lower cost, and the existing wet separation process leads all materials to be saturated with moisture and all materials to be dried when in use due to the direct soaking effect of water, thereby consuming a great deal of drying cost; the technical proposal of the utility model adopts the mode of crushing and drying at the beginning, the water content of the slag is not high, and the drying cost is much lower; the cost is greatly reduced.

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 an enlarged schematic view of the preliminary sorting system of FIG. 1;

FIG. 3 is a schematic view of the magnetic attraction device shown in FIG. 2;

FIG. 4 is an enlarged schematic view of the mudstone separation unit of FIG. 1;

fig. 5 is an enlarged schematic view of the charcoal wood sorting apparatus of 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;

2-a mud stone sorting device, 21-a vibration cleaning machine, 211-a material receiving port, 212-a vibration cleaning screen, 213-a fine particle discharge port, 214-a medium particle discharge port, 215-a conveying device, and 217-a second saxolone;

3-and charcoal wood sorting device, 31-sorting machine, 311-sorting vibrating screen, 32-rolling equipment and 32-secondary sorting machine.

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 figures 1 to 5, the utility model discloses separation system of biomass combustion furnace slag, including preliminary separation system 1, mud stone sorting unit2. And a charcoal wood sorting device 3, wherein the preliminary sorting system 1 comprises a storage bin 11, the storage bin 11 is funnel-shaped, the lower opening of the storage bin is positioned on a discharging belt 12, the particles of the mixture output by the discharging belt 12 are all less than 5CM, the discharging point of the discharging belt 12 is positioned on a transfer belt 13, by arranging the separated discharging belt 12 and the transfer belt 13, two transmission devices respectively and independently operate and control, the flow rate of the discharged material can be controlled only by controlling the rotating speed of the discharging belt 12, a magnet adsorption device 15 is also arranged on the transfer belt 13, the magnet adsorption device 15 comprises a frame 151, a magnet 152 is arranged on the frame 151, a circle of magnet adsorption belt 153 is arranged on the frame 151, the magnet adsorption belt 153 is arranged around the magnet 152, the magnet adsorption belt 153 is positioned above the transfer belt 13, the magnet adsorption belt 153 is driven to rotate by a driving motor, the biomass incineration slag is transported to a dryer 14 under the transportation action of the transfer belt 13, the iron impurities in the slag are upwards adsorbed by the adsorption force of the magnet 152 and are attached to the iron adsorption belt 153, the iron impurities are taken out of the slag after the iron adsorption belt 153 rotates, the magnetic force at the edge is smaller than that at the middle part due to the uneven distribution of the magnetic force of the magnet, the barrier strips 154 protruding out of the iron adsorption belt 153 prevent the movement of the iron impurities, the iron and the iron impurities fall off and are separated from the iron adsorption belt 153 under the condition that the magnetic force at the edge is not enough to be adsorbed, and the collected scrap 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; the output of first husky dragon 16 is connected to the vibratory cleaning machine 21 of stone sorting unit 2, and vibratory cleaning machine 21 connects material mouth 211 and the delivery outlet of first husky dragon 16 to be connected, and there is vibratory cleaning screen 212 in vibratory cleaning machine 21 inside, and vibratory cleaning screen 212 is 20 mesh specification, and vibratory cleaning machine 21's bottom is formed with a fine particle discharge gate 213, a well granule discharge gate 214, and well granule discharge gate 214The port 214 is connected with the inlet of the stone remover 22 through a conveying device 215, a jump sieve 221 is arranged in the stone remover 22, and a stone discharging port 222 and a non-stone discharging port 223 are formed at the bottom of the stone remover 22; the vibration cleaning screen 212 in the vibration cleaning machine 21 sorts the mixed materials according to the particle size, wherein the fine mixture is discharged through the fine particle discharge port 213, the mixture is completely separated because the particle sizes of carbon, soil and stone in the mixture are very small and even close to dust, and cannot be separated again, so that the mixture is used for preparing organic fertilizer, and the medium particle discharge port 214 obtains a medium particle material mixture; the mixture comprises small stones, charcoal and wood, then the stones are separated by the stone remover 22, the stones are separated by the jump sieve 221 in the stone remover 22, the stone grains from the stone discharging port 222 are uniform in grain size, small and small, are similar to vermiculite, and can be used in the field of plant cuttage cultivation and planting; discharging the obtained mixture of charcoal and wood from a non-stone discharge port 223, conveying the mixture to a sorting machine 31 of a charcoal-wood sorting device 3, wherein a sorting vibrating screen 311 with the mesh diameter of 3mm is arranged in the sorting machine 31, the sorting vibrating screen 311 divides the sorting machine 21 into an upper discharge port and a lower discharge port, the upper discharge port is connected to a ball mill 32, the output port of the ball mill 32 is connected to an independent secondary sorting machine 33, obtaining high-quality charcoal powder, and the charcoal powder is tested to have balanced quality and has the combustion value of 1.6-2.5 multiplied by 10⁷J/kg; the discharge port at the lower part of the classifier 31 is also connected to a ball mill 32, the output port of the ball mill 32 is connected to an independent secondary classifier 33, and the obtained carbon powder has a combustion value of 0.8-1.2 × 10⁷Between J/kg, the vibration cleaning machine 21 is also connected with a second shakelong 217; in the process of the embodiment, after the equipment is configured, 10-20 tons of slag are processed per hour, the yield of carbon is about 15%, more importantly, all screened products are used for producing organic fertilizers by using the utility value, dust and particles with the particle size of less than 20 meshes, wherein the carbon is a main source of the organic fertilizers; the stone with medium grain size, i.e. stone with more than 20 meshes and less than 3CM, is good building material and gardening cultivation material, the large stone is building material, and the recovered iron also has the function of recoveryCommercial value, no sewage treatment problem and no secondary pollution; the burning value of the carbon powder in the large particles in the product is 1.6-2.5 multiplied by 10⁷J/kg; the carbon powder in the medium and small particles has a combustion value of 0.8-1.2 x 10⁷J/kg, after sorting, the charcoals with different qualities can be respectively utilized according to different combustion values, the higher the combustion value of the charcoals is, the higher the quality of the charcoals is, and the higher the economic value is, the technical scheme of the invention can realize high-efficiency and accurate sorting of the furnace slag, accurately sort the charcoals with different qualities from the biomass fuel incineration furnace slag, and greatly improve the economic benefit and the social benefit of the furnace slag by classifying the quality of the charcoals.

According to specific production environment and national environmental protection requirements, a plurality of saxolone can be arranged for eliminating environmental pollution, common equipment such as the saxolone and a ball mill can be adopted for adjustment and replacement in the conventional equipment in the embodiment, equipment with similar functions can also be adopted for replacement, a vibration cleaning machine adopts a product of the Guangdong food machinery company of Danyang city, and a stone removing machine adopts a product of the Songtiang company as a replacement means and can be replaced.

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 (7)

1. The sorting system for the biomass combustion furnace slag is characterized by comprising a preliminary sorting system (1), a mud stone sorting device (2) and a charcoal wood sorting device (3) which are sequentially connected;

the preliminary sorting system (1) comprises a storage bin (11), a discharge port is arranged below the storage bin (11), the discharge port is positioned above a discharge belt (12), a discharge point of the discharge belt (12) is positioned on a transfer belt (13), the transfer belt (13) conveys materials to a dryer (14), the discharge port of the dryer (14) is connected with a first shakelong (16), and a material outlet of the shakelong is connected with a mud stone sorting device (2);

the mud stone sorting device (2) comprises a vibration cleaning machine (21), a material receiving port (211) of the vibration cleaning machine (21) is connected with an output port of the primary sorting system (1), a vibration cleaning screen (212) is arranged in the vibration cleaning machine (21), a fine particle discharge port (213) and a medium particle discharge port (214) are formed at the bottom of the vibration cleaning machine (21), the medium particle discharge port (214) is connected with an inlet of the stone removing machine (22) through a conveying device (215), a jump sorting screen (221) is arranged in the stone removing machine (22), and a stone discharge port (222) and a non-stone discharge port (223) are formed at the bottom of the stone removing machine (22);

charcoal wood sorting unit (3) include a sorter (31), and the pan feeding mouth and the discharge gate of mud stone sorting unit (2) of sorter (31) are connected, have one in sorter (31) to select separately shale shaker (311), select separately two discharge gates about separating into sorter (31) shale shaker (311), every discharge gate is connected to one and rolls equipment (32), rolls the delivery outlet of equipment (32) and is connected to independent secondary sorter (33).

2. The system for sorting biomass combustion slag according to claim 1, wherein: 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 system for sorting biomass combustion slag according to claim 1, wherein: the specification of a discharge hole at the bottom of the first shakelong (16) is 3 cm.

4. The system for sorting biomass combustion slag according to claim 1, wherein: the vibration cleaning screen (212) of the vibration cleaning machine (21) is 20-22 meshes in specification.

5. The system for sorting biomass combustion slag according to claim 1, wherein: and a second sand-lock (217) is also arranged on the vibration cleaning machine (21).

6. The system for sorting biomass combustion slag according to claim 1, wherein: the mesh diameter of a sorting vibrating screen (311) in the sorting machine (31) is 3 mm.

7. The system for sorting biomass combustion slag according to claim 1, wherein: the rolling equipment (32) is a counter mill or a ball mill.

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