Straw sugar making system coupled with biomass power plant

Abstract

The utility model discloses a straw sugar making system coupled with a biomass power plant. The straw sugar making system comprises a straw sugar making subsystem and a straw sugar making subsystem, wherein the straw sugar making subsystem comprises a bundling device, and a bundle breaking device, a first-stage iron removal device, a primary sorting device, a second-stage iron removal device, a secondary sorting device, a third-stage iron removal device, a crushing device, a third sorting device, a drying device, a crushing device, a powder tank device, a catalytic saccharification device, a solid-liquid separation device and a sugar liquid concentration device which are sequentially connected; the biomass power plant subsystem comprises a stock ground, a biomass boiler, a steam turbine and a generator which are connected in sequence; a discharging port of the bundling device is connected with a feeding port of the stock yard, and a discharging port of the stock yard is connected with a feeding port of the bundle breaking device. A heat source inlet of the drying device is connected with a biomass boiler heat outlet; a steam inlet of the catalytic saccharification and liquid glucose concentration device is connected with a steam outlet of the turbine; a generator electricity outlet is connected with an electricity inlet of the straw sugar manufacturing subsystem. The system can make full use of mature fuel collection and storage systems, infrastructures, green heat, green electricity and the like of the biomass power plant, the investment and operation cost of the straw sugar making system is reduced, and the survivability of the power plant is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of biomass utilization technology, specifically relates to a kind of straw sugar-making system coupled with biomass power plant. BACKGROUND

[0002] With the market competition of biomass power plant intensifying, the survival pressure of biomass power plant is increasing, and biomass incineration power generation is unsustainable, so biomass power plant needs to be transformed.

[0003] At present, the most promising way of biomass utilization is biological manufacturing: sustainable aviation kerosene, biological materials, feed protein, etc. As the crop straw with the largest available amount, one of the important paths for the biological manufacturing industry is to convert straw into fermentable sugar. Biomass power plant has a mature straw collection and storage system and an operation management team, and has the basic conditions for developing biological manufacturing, but most biological manufacturing belongs to the chemical industry and needs to be built in a chemical industrial park, so it is impossible to realize the transformation of biomass power plant. UTILITY MODEL CONTENT

[0004] The technical problem solved is that the utility model provides a straw sugar-making system coupled with biomass power plant, which can make full use of the mature fuel collection and storage system, infrastructure and green heat and green electricity of biomass power plant, reduce the investment and operation cost of the straw sugar-making system, and improve the survival ability of the power plant.

[0005] Technical scheme: a straw sugar-making system coupled with biomass power plant, comprising a straw sugar-making subsystem and a biomass power plant subsystem, the straw sugar-making subsystem comprising a bundling device and a breaking device, a first iron removal device, a primary sorting device, a second iron removal device, a secondary sorting device, a third iron removal device, a crushing device, a tertiary sorting device, a drying device, a grinding device, a powder tank, a catalytic saccharification device, a solid-liquid separation device and a sugar liquid concentration device connected in sequence; the biomass power plant subsystem comprises a stockyard, a biomass boiler, a steam turbine and a generator connected in sequence; the discharge port of the bundling device is connected to the feed inlet of the stockyard, and the discharge port of the stockyard is connected to the feed inlet of the breaking device; the heat source inlet of the drying device is connected to the heat outlet of the biomass boiler; the steam inlets of the catalytic saccharification device and the sugar liquid concentration device are connected to the steam outlet of the steam turbine; and the power outlet of the generator is connected to the power inlet of the straw sugar-making subsystem.

[0006] Preferably, the discharge port of the primary sorting device is also connected to the feed inlet of the stockyard.

[0007] Preferably, the straw is bundled by iron wire in the bundling device.

[0008] Preferably, the primary sorting device is an inclined plane reciprocating oscillation type sorting device.

[0009] Preferably, the secondary sorting device is a vibrating screen sorting device.

[0010] Preferably, the tertiary sorting device is a cyclone separator sorting device.

[0011] Preferably, the powder tank is further provided with a nitrogen inlet.

[0012] Preferably, the sugar liquid concentration device comprises a membrane separation device and a multi-effect evaporation device.

[0013] Preferably, the solid-liquid separation device is provided with a lignin outlet and a mixed sugar liquid outlet, and the mixed sugar liquid outlet is connected to a mixed sugar liquid inlet of the sugar liquid concentration device.

[0014] Preferably, the sugar liquid concentration device is provided with a mixed sugar concentrate outlet and a C5 sugar concentrate outlet.

[0015] Beneficial effects: Since straw sugar is not compulsorily included in the management requirements of the chemical industry park, the straw sugar coupled with the biomass power plant can fully utilize the mature fuel collection and storage system, infrastructure and green heat and green electricity of the biomass power plant, reduce the investment and operation cost of the straw sugar system, and improve the survival ability of the power plant. The high-value C5 sugar liquid is separated and concentrated by the green electricity and green heat of the biomass power plant. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic diagram of the utility model;

[0017] The numbers in the figure represent the following: 1, straw sugar subsystem; 101, bundling device; 102, bundle breaking device; 103, primary iron removal device; 104, primary sorting device; 105, secondary iron removal device; 106, secondary sorting device; 107, tertiary iron removal device; 108, crushing device; 109, tertiary sorting device; 110, drying device; 111, pulverizing device; 112, powder tank; 113, catalytic saccharification device; 114, solid-liquid separation device; 115, sugar liquid concentration device; 2, biomass power plant subsystem; 201, stockyard; 202, biomass boiler; 203, steam turbine; 204, generator. DETAILED DESCRIPTION

[0018] The utility model will be further described below in combination with the drawings and specific embodiments. Embodiment 1

[0019] As Figure 1The utility model discloses a kind of straw sugar-making systems coupled with biomass power plant, including straw sugar-making subsystem 1 and biomass power plant subsystem 2, the straw sugar-making subsystem 1 includes bundling device 101 and is sequentially connected with bundle breaking device 102, first iron removal device 103, primary sorting device 104, secondary iron removal device 105, secondary sorting device 106, third iron removal device 107, crushing device 108, tertiary sorting device 109, drying device 110, pulverizing device 111, powder tank 112, catalytic saccharification device 113, solid-liquid separation device 114, sugar liquid concentration device 115;The biomass power plant subsystem 2 includes yard 201, biomass boiler 202, steam turbine 203 and generator 204 sequentially connected;The discharge port of bundling device 101 is connected with the feed inlet of yard 201, and the discharge port of yard 201 is connected with the feed inlet of bundle breaking device 102;The heat source import of drying device 110 is connected with the heat export of biomass boiler 202;The steam import of catalytic saccharification device 113 and sugar liquid concentration device 115 is connected with the steam export of steam turbine 203;The electric quantity export of generator 204 is connected with the electric quantity import of straw sugar-making subsystem 1.

[0020] Wherein, the discharge port of primary sorting device 104 is also connected with the feed inlet of yard 201.

[0021] The straw is bundled by iron wire in bundling device 101.

[0022] The primary sorting device 104 is an inclined plane reciprocating oscillation type sorting device, mainly used for separating light-weight materials such as foam, mulch, plastic and rotten leaves in the straw.

[0023] The secondary sorting device 106 is a vibrating screen type sorting device, mainly used for separating impurities such as bricks, stones and sand in the straw.

[0024] The tertiary sorting device 109 is a cyclone separator type sorting device, mainly used for separating dust impurities in the short rod of straw.

[0025] The powder tank 112 is also provided with a nitrogen inlet, so that the anaerobic state is maintained in the powder tank 112, and air entering to cause the powder to return to moisture can be prevented.

[0026] The sugar liquid concentration device 115 includes a membrane separation device and a multi-effect evaporation device.

[0027] The solid-liquid separation device 114 is provided with a lignin outlet and a mixed sugar liquid outlet, and the mixed sugar liquid outlet is connected with the mixed sugar liquid inlet of the sugar liquid concentration device 115.

[0028] The sugar liquid concentration device 115 is provided with a mixed sugar concentrate outlet and a C5 sugar concentrate outlet.

[0029] The process flow using the system is as follows:

[0030] After the biomass straw is collected by the bundling device 101, it is transported to the stockyard 201 of the biomass power plant, and then subjected to bundle breaking, primary iron removal, primary separation, secondary iron removal, secondary separation, tertiary iron removal, crushing, and tertiary separation to obtain basically clean straw short poles; the light impurities and biomass screened out by the primary separation device 104 are sent to the stockyard 201.

[0031] The straw short poles are sent to the drying device 110, dried under the action of the heat source from the biomass boiler 202, crushed in the crushing device 111, and then stored in the powder tank 112.

[0032] The straw powder is subjected to depolymerization in the catalytic saccharification device 113 to obtain a mixed sugar solution and a mixed solution of lignin, and the process consumes steam extracted from the steam turbine 203; the mixed solution is subjected to separation of lignin and mixed sugar solution in the solid-liquid separation device 114.

[0033] The mixed sugar solution is sent to the sugar solution concentration device 115 to separate a large amount of C5 sugar solution and concentrate all the sugar solution to obtain C5 sugar concentrate and mixed sugar concentrate. The process consumes steam extracted from the steam turbine 203.

Claims

1. A straw-based sugar production system coupled with a biomass power plant, characterized in that, The system includes a straw sugar production subsystem (1) and a biomass power plant subsystem (2). The straw sugar production subsystem (1) includes a baling device (101) and, in sequence, a baling device (102), a primary iron removal device (103), a primary sorting device (104), a secondary iron removal device (105), a secondary sorting device (106), a tertiary iron removal device (107), a crushing device (108), a tertiary sorting device (109), a drying device (110), a pulverizing device (111), a powder tank (112), a catalytic saccharification device (113), a solid-liquid separation device (114), and a sugar solution concentration device (115). The biomass power plant... The subsystem (2) includes a material yard (201), a biomass boiler (202), a steam turbine (203), and a generator (204) connected in sequence; the discharge port of the baling device (101) is connected to the inlet of the material yard (201), and the discharge port of the material yard (201) is connected to the inlet of the baling device (102); the heat source inlet of the drying device (110) is connected to the heat outlet of the biomass boiler (202); the steam inlets of the catalytic saccharification device (113) and the sugar solution concentration device (115) are connected to the steam outlet of the steam turbine (203); and the power outlet of the generator (204) is connected to the power inlet of the straw sugar production subsystem (1).

2. The straw-based sugar production system coupled with a biomass power plant according to claim 1, characterized in that, The discharge port of the primary sorting device (104) is also connected to the inlet of the material yard (201).

3. The straw-based sugar production system coupled with a biomass power plant according to claim 1, characterized in that, The baling device (101) uses wire to bind the straw.

4. The straw-based sugar production system coupled with a biomass power plant according to claim 1, characterized in that, The primary sorting device (104) is an inclined surface reciprocating oscillation sorting device.

5. A straw-based sugar production system coupled with a biomass power plant according to claim 1, characterized in that, The secondary sorting device (106) is a vibrating screen type sorting device.

6. A straw-based sugar production system coupled with a biomass power plant according to claim 1, characterized in that, The three-stage sorting device (109) is a cyclone separator type sorting device.

7. A straw-based sugar production system coupled with a biomass power plant according to claim 1, characterized in that, The powder tank (112) is also equipped with a nitrogen inlet.

8. A straw-based sugar production system coupled with a biomass power plant according to claim 1, characterized in that, The sugar solution concentration device (115) includes a membrane separation device and a multi-effect evaporation device.

9. A straw-based sugar production system coupled with a biomass power plant according to claim 1, characterized in that, The solid-liquid separation device (114) is provided with a lignin outlet and a mixed sugar solution outlet, and the mixed sugar solution outlet is connected to the mixed sugar solution inlet of the sugar solution concentration device (115).

10. A straw-based sugar production system coupled with a biomass power plant according to claim 1, characterized in that, The sugar concentration device (115) is equipped with a mixed sugar concentrate outlet and a C5 sugar concentrate outlet.

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