Porous biomass pellet-type adsorptive combustion agent, combustion agent roll structure, and application

By adding foaming agents and combustion improvers to biomass pellets, porous biomass pellet adsorbents are made and packaged into rolls, solving the problems of high cost and insufficient bursting force of loose paper rolls, and achieving low-cost and high-efficiency rock fracturing.

CN120098686BActive Publication Date: 2026-02-13中国葛洲坝集团第三工程有限公司
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Patent Information

Application Number
CN202510519479.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-04-24
Publication Date
2026-02-13
Estimated Expiration
2045-04-24

AI Technical Summary

Technical Problem

The existing core of rock-breaking tubes generally uses loosely rolled paper, which is costly, energy-intensive in the production process, and has insufficient blasting force.

Method used

A porous biomass granular adsorbent is used. By adding foaming agents and combustion aids to biomass granules, a low-cost, high-adsorption porous biomass granular adsorbent is made. It is then packaged into a roll structure and uses the heat exchange of the liquid fracturing medium to generate high-pressure gas to achieve rock fracturing.

Benefits of technology

It reduces production costs, increases blasting force, and produces no harmful substances after combustion. It also enhances adsorption and combustion performance, thereby improving rock-breaking efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a porous biomass granular adsorptive combustion agent, which comprises a biomass granular substrate, a foaming agent and a combustion-supporting agent, the foaming agent is a foaming agent solution, the amount of the foaming agent solution is 5-10% of the mass of the biomass granular substrate; the combustion-supporting agent is a combustion-supporting agent solution or a solid combustion-supporting agent, the amount of the combustion-supporting agent solution is 3-10% of the mass of the biomass granular substrate, and the amount of the solid combustion-supporting agent is 1-10% of the mass of the biomass granular substrate; the porous biomass granular adsorptive combustion agent has a particle size of 0.5-2.5 mm, a specific surface area not less than 150 m2 / g, a water content not higher than 5%, and a combustion heat value not lower than 13 MJ / kg. The application further relates to a porous biomass granular adsorptive combustion agent roll structure, a preparation method and application of the porous biomass granular adsorptive combustion agent roll structure. The porous biomass granular adsorptive combustion agent provided by the application solves the problems of high price and insufficient blasting force of the roll paper used as the adsorptive combustion agent.
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Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of gas rock breaking, blasting and the like, and relates to a porous biomass granular adsorption combustion agent, and further relates to a porous biomass granular adsorption combustion agent roll structure, and further relates to a preparation method and application of the porous biomass granular adsorption combustion agent roll structure. BACKGROUND

[0002] Liquid oxygen-biomass green high-energy instantaneous rock breaking complete technology, the principle is to use the chemical reaction of liquid oxygen and carbon-based materials and the phase change expansion of liquid gas, liquid oxygen and charcoal are placed together and exploded to release carbon dioxide and carbon monoxide, so as to achieve the purpose of a bomb.

[0003] Based on the application principle of this technology, some specific blasting structures also appear, such as the Chinese invention patent with the application date of December 16, 2021 and the publication number of CN114184090A, which provides a hole filling flexible cracking device and its use method, this application uses a flexible film sleeve to replace the ordinary cracking outer tube to avoid unsafe phenomena such as flying pipe and unexploded pipe; and the flexible film sleeve is not a traditional pipe shape, before filling the combustion core, its shape is folded or compressed into any shape, and becomes a pipe shape after the combustion core is filled, completely eliminating the problems of transportation and safety hazards.

[0004] In the above-mentioned prior art, although some problems existing in the blasting process are solved, the following shortcomings still exist: the combustion core of the cracking rock breaking pipe generally needs to use fluffy paper, but the price of the paper is relatively high, and the process of producing the paper needs to consume a large amount of energy and industrial water, generate a large amount of industrial wastewater, and has the problems of relatively low blasting force and the like. SUMMARY

[0005] The first object of the present application is to provide a porous biomass granular adsorption combustion agent, by adding a foaming agent and a combustion-supporting agent in the biomass particles, a low-cost, high-absorption porous biomass granular adsorption combustion agent is prepared, which solves the problems of high price and insufficient blasting force of the adsorption combustion agent using paper.

[0006] The second object of the present application is to provide a porous biomass granular adsorption combustion agent roll structure.

[0007] The third object of the present application is to provide a preparation method of the porous biomass granular adsorption combustion agent roll structure.

[0008] The fourth object of the present application is to provide an application of the porous biomass granular adsorption combustion agent roll structure.

[0009] The first technical solution of the present application is a porous biomass granular adsorption combustion agent, which comprises a biomass granular substrate, a foaming agent and a combustion-supporting agent, the foaming agent is a foaming agent solution, the foaming agent solution is added in an amount of 5% to 10% of the mass of the biomass granular substrate, the combustion-supporting agent is a combustion-supporting agent solution or a solid combustion-supporting agent, the combustion-supporting agent solution is added in an amount of 3% to 10% of the mass of the biomass granular substrate, and the solid combustion-supporting agent is added in an amount of 1% to 10% of the mass of the biomass granular substrate.

[0010] The porous biomass granular adsorption combustion agent has a particle size of 0.5 mm to 2.5 mm, a specific surface area of not less than 150 m2 / g, a water content of not higher than 5%, and a combustion heat value of not lower than 13 MJ / kg.

[0011] The present application has the following characteristics:

[0012] The biomass granular substrate is obtained by crushing roots, branches, leaves or straws of various plants into granules by using mechanical equipment, and the particle size of the biomass granular substrate is 0.5 mm to 2.5 mm.

[0013] The foaming agent is an environmentally friendly foaming agent, and the concentration of the foaming agent solution is 1% to 5%.

[0014] The combustion-supporting agent is an environmentally friendly combustion-supporting agent, and the concentration of the combustion-supporting agent solution is 3% to 30%.

[0015] The second technical solution of the present application is a porous biomass granular adsorption combustion agent roll structure, which is prepared by using the above-mentioned porous biomass granular adsorption combustion agent, and the specific structure is as follows: the structure comprises an adsorption combustion agent wrapping layer, the adsorption combustion agent wrapping layer contains the porous biomass granular adsorption combustion agent, the adsorption combustion agent wrapping layer is packaged into a plurality of adsorption combustion agent packs which are connected to each other and independent, and the plurality of adsorption combustion agent packs are made into a porous biomass granular adsorption combustion agent roll.

[0016] The present application has the following characteristics:

[0017] The adsorption combustion agent wrapping layer is made of fiber non-woven fabric, which is made of wood pulp composite fiber, viscose fiber or polypropylene fiber, etc., and does not have any flame-retardant measures; the grammage of the adsorption combustion agent wrapping layer is 10 g / m 2 ~30 g / m 2 , and the pore size of the adsorption combustion agent wrapping layer is less than 2.5 mm.

[0018] The third technical solution of the present application is a preparation method of the porous biomass granular adsorption combustion agent roll structure, and the specific steps are as follows:

[0019] S1, crushing roots, branches, leaves or straws of plants by using a crusher, and then granulating the crushed particles by using a granulator to obtain a biomass granular substrate;

[0020] S2, the biomass particle matrix is mixed with the foaming agent and the combustion-supporting agent, the mixture is regranulated, and the porous biomass particle type adsorption combustion agent is obtained after drying;

[0021] S3, the porous biomass particle type adsorption combustion agent is dried, the adsorption combustion agent wrapping layer is made of fiber non-woven fabric, the porous biomass particle type adsorption combustion agent is filled in the adsorption combustion agent wrapping layer, then the adsorption combustion agent wrapping layer is packaged into independent adsorption combustion agent packs which are connected to each other, and finally the adsorption combustion agent packs are made into the porous biomass particle type adsorption combustion agent roll.

[0022] The application also has the characteristics that:

[0023] The specific method of S2 is that the biomass particle matrix is screened and pretreated to remove impurities and particles of incorrect size, the combustion-supporting agent and the foaming agent are weighed, the combustion-supporting agent is mixed with the biomass particle matrix, the foaming agent solution is added for continuous stirring until the three are uniformly mixed, the mixture is regranulated, and the porous biomass particle type adsorption combustion agent is obtained after drying.

[0024] The specific method of S3 is that the adsorption combustion agent wrapping layer is packaged into independent adsorption combustion agent packs which are connected to each other by means of heat sealing, adhesive sealing or thread sewing.

[0025] The fourth technical solution adopted by the application is the application of the porous biomass particle type adsorption combustion agent roll structure, and the specific method is that the porous biomass particle type adsorption combustion agent roll structure is used.

[0026] The bottom end of the closed flexible outer film is sealed, the porous biomass particle type adsorption combustion agent roll is filled in the flexible outer film, the liquid inlet pipe is passed through the porous biomass particle type adsorption combustion agent roll and extends to the bottom of the flexible outer film, the liquid inlet pipe nozzle is stretched out of the flexible outer film and is provided with an inflation head, a plurality of electric ignition devices are inserted into the flexible outer film and are in contact with the porous biomass particle type adsorption combustion agent roll, an exhaust pipe is arranged at the top end of the flexible outer film, and finally the top end of the flexible outer film is sealed.

[0027] The flexible outer film is installed at the position where blasting is needed, the liquid-state cracking medium is filled into the inside of the cracking device through the liquid inlet pipe, the liquid-state cracking medium is adsorbed on the porous biomass particle type adsorption combustion agent roll, after the liquid-state cracking medium is filled, the liquid inlet pipe and the exhaust pipe are closed, the electric ignition device is ignited, the porous biomass particle type adsorption combustion agent roll is rapidly burned and generates heat energy, the heat energy exchanges with the liquid-state cracking medium, the liquid-state cracking medium is changed into gaseous state, high-pressure gas is released, and rock cracking is realized by releasing the high-pressure gas.

[0028] The beneficial effects of the present application are:

[0029] (1) The porous biomass particle type adsorption combustion agent of the present application uses plant rhizomes, branches, leaves, and straws, etc., and is broken into particles by a particle crusher device. After adding a foaming agent and a combustion aid in the biomass particles and re-pelletizing, a low-cost, high-absorption porous biomass particle matrix adsorption combustion agent is prepared. The raw materials are widely available and the cost is low. No harmful substances are generated during the processing and after combustion, and it is green and environmentally friendly. It can effectively reduce the cost of rock breaking materials;

[0030] (2) The porous biomass particle type adsorption combustion agent roll structure of the present application uses an adsorption combustion agent wrapping layer. The porous biomass particle type adsorption combustion agent is packaged into mutually connected and independent adsorption combustion agent packs by heat sealing, adhesive sealing, or thread sewing, etc. The mutually connected and independent adsorption combustion agent packs are then made into an adsorption combustion agent roll by rolling, and are filled into a flexible outer film. The biomass particles after adding a foaming agent and a combustion aid have a rich pore structure and a large specific surface area, can effectively adsorb liquid oxygen or pressurized high-purity oxygen, and can improve the combustion performance and explosive force, and improve the rock breaking effect. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a single adsorption combustion agent pack structure diagram of the porous biomass particle type adsorption combustion agent of the present application;

[0032] Figure 2 It is a single adsorption combustion agent pack structure diagram of the porous biomass particle type adsorption combustion agent of the present application; Figure 1 It is a B-B direction structure section view diagram in the present application,

[0033] Figure 3 It is a single adsorption combustion agent pack structure diagram of the porous biomass particle type adsorption combustion agent of the present application;

[0034] Figure 4 It is a single adsorption combustion agent pack structure diagram of the porous biomass particle type adsorption combustion agent of the present application;

[0035] Figure 5 It is a single adsorption combustion agent pack structure diagram of the porous biomass particle type adsorption combustion agent of the present application;

[0036] Figure 6 It is a B-B direction structure section view diagram in the present application, Figure 3 , Figure 4 or Figure 5 It is a B-B direction structure section view diagram in the present application,

[0037] Figure 7 It is a first filling diagram of the porous biomass particle type adsorption combustion agent roll structure of the present application;

[0038] Figure 8 ​This is a schematic diagram of the second filling method for the porous biomass granular adsorbent roll structure of the present invention;

[0039] Figure 9 For the present invention Figure 7 or Figure 8 Schematic diagram of the cross-section of the structure in the CC direction.

[0040] In the attached diagram, 1. Flexible outer membrane, 2. Liquid inlet pipe, 3. Exhaust pipe, 4. Electric ignition device, 5. Porous biomass granular adsorbent, 6. Adsorbent coating layer, 7. Adsorbent pack, 8. Porous biomass granular adsorbent roll. Detailed Implementation

[0041] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0042] The porous biomass pellet type adsorbent includes a biomass pellet matrix, a foaming agent, and a combustion accelerator. The foaming agent is a foaming agent solution, which is an environmentally friendly foaming agent. The concentration of the foaming agent solution is 1% to 5%, and the amount of foaming agent solution added is 5% to 10% of the mass of the biomass pellet matrix. The combustion accelerator is a combustion accelerator solution or a solid combustion accelerator. The combustion accelerator is an environmentally friendly combustion accelerator. When using a combustion accelerator solution, the concentration of the combustion accelerator solution is 3% to 30%, and the amount of combustion accelerator solution added is 3% to 10% of the mass of the biomass pellet matrix. When using a solid combustion accelerator, the amount of solid combustion accelerator added is 1% to 10% of the mass of the biomass pellet matrix.

[0043] Foaming agents can generate uniformly distributed pores during material preparation, further increasing the specific surface area of ​​the biomass particle matrix and improving adsorption performance; combustion aids can enhance the combustion performance of porous biomass particle adsorbents in a liquid oxygen environment and improve rock-breaking effect.

[0044] The porous biomass granular adsorbent has a particle size of 0.5mm~2.5mm, a specific surface area of ​​not less than 150㎡ / g, a moisture content of not more than 5%, and a calorific value of not less than 13MJ / kg.

[0045] The biomass pellet matrix is ​​made by mechanically crushing the roots, stems, leaves, or straw of various plants into pellets. The particle size of the biomass pellet matrix is ​​0.5mm to 2.5mm. The raw materials are widely available and inexpensive, the processing equipment is common and the processing cost is low, and no harmful substances are produced during processing and after combustion, making it relatively environmentally friendly. It can effectively reduce the cost of materials consumed in rock breaking.

[0046] The porous biomass granular adsorbent roll structure is prepared using the aforementioned porous biomass granular adsorbent, and its specific structure is as follows: Figures 1-2As shown, including adsorption combustion agent package layer 6, adsorption combustion agent package layer 6 is provided with porous biomass particle type adsorption combustion agent 5, adsorption combustion agent package layer 6 is encapsulated into several mutually connected independent adsorption combustion agent package 7, Figure 1 For single independent adsorption combustion agent package 7, Figures 3-6 For a plurality of independent adsorption combustion agent package 7, several adsorption combustion agent package 7 is made into porous biomass particle type adsorption combustion agent roll 8.

[0047] Further, the adsorption combustion agent package layer 6 is made of fiber non-woven fabric, which is made of wood pulp composite fiber, viscose fiber or polypropylene fiber, etc. without any flame retardant measures; the adsorption combustion agent package layer 6 weighs 10g / m 2 ~30g / m 2 , the adsorption combustion agent package layer 6 has a pore size of less than 2.5mm. The adsorption combustion agent package layer 6 has excellent air permeability, liquid permeability and good hygroscopicity.

[0048] The preparation method of the porous biomass particle type adsorption combustion agent roll structure of the application is as follows:

[0049] S1, using a pulverizer to crush the roots, branches and leaves or straw of plants, and then using a granulator to granulate the crushed particles to obtain a biomass particle matrix, the specific method is:

[0050] When selecting biomass raw materials, prevent mold and rot; the selected raw materials should contain as little sand, soil and other impurities as possible, because impurities will affect particle formation and may cause danger or affect rock breaking effect during combustion; the selected raw materials should have a certain toughness, which is helpful for particle formation; the selected raw materials should have stable and sustainable sources.

[0051] According to the characteristics of different raw materials, select suitable crushing and granulating machines, remove large impurities in the raw materials before crushing, cut off the excessively long raw materials, and strictly control the size of the crushed particles to meet the particle size of 0.5mm~2.5mm of the biomass particle type adsorption material; the crushing process should be kept dry and well ventilated;

[0052] The granulator is used to granulate the crushed biomass raw materials to obtain a biomass particle matrix.

[0053] S2. Mix the biomass pellet matrix with the foaming agent and the combustion accelerator evenly, regranulate the mixture, and dry it to obtain porous biomass pellet adsorbent 5. The specific method is as follows: screen and pre-treat the biomass pellet matrix to remove impurities and particles that do not meet the size requirements. Weigh the combustion accelerator and the foaming agent separately. Stir and mix the combustion accelerator (which can be a combustion accelerator solution or a solid combustion accelerator) with the biomass pellet matrix until the combustion accelerator and the biomass pellet matrix are evenly mixed. Then add the foaming agent solution and continue stirring until the three are evenly mixed. Regranulate the mixture and dry it to obtain porous biomass pellet adsorbent 5.

[0054] S3. The porous biomass granular adsorbent 5 is dried, and an adsorbent wrapping layer 6 is made of non-woven fiber. The porous biomass granular adsorbent 5 is filled into the adsorbent wrapping layer 6. Then, the adsorbent wrapping layer 6 is sealed into an interconnected but independent adsorbent package 7 by heat sealing, adhesive sealing or stitching. The adsorbent package 7 is then made into a porous biomass granular adsorbent roll 8. The adsorbent package 7 can be square, rectangular or other shapes, and there are no specific requirements for the shape.

[0055] The application of the porous biomass granular adsorbent roll structure: The specific method using the porous biomass granular adsorbent roll structure of this invention is as follows:

[0056] like Figures 7-9 As shown, the bottom end of the closed flexible outer membrane 1 is sealed, and the porous biomass granular adsorbent roll 8 is filled inside the flexible outer membrane 1. The liquid inlet pipe 2 passes through the porous biomass granular adsorbent roll 8 and extends to the bottom of the flexible outer membrane 1. The inlet of the liquid inlet pipe 2 extends out of the flexible outer membrane 1 and is equipped with an air charging head. Several electric ignition devices 4 are inserted into the flexible outer membrane 1 and contact the porous biomass granular adsorbent roll 8. An exhaust pipe 3 is set at the top of the flexible outer membrane 1. Finally, the top of the flexible outer membrane 1 is sealed.

[0057] The flexible outer membrane 1 is installed at the location where blasting is required. Liquid fracturing medium is filled into the fracturing device through the liquid inlet pipe 2. The liquid fracturing medium is adsorbed onto the porous biomass granular adsorbent roll 8. After filling with the liquid fracturing medium, the liquid inlet pipe 2 and the exhaust pipe 3 are closed. The electric ignition device 4 is ignited. The porous biomass granular adsorbent roll 8 burns rapidly and generates heat energy, which exchanges heat with the liquid fracturing medium, causing the liquid fracturing medium to change from a liquid state to a gas state, releasing high-pressure gas. The release of high-pressure gas achieves rock fracturing.

[0058] Example 1

[0059] The porous biomass particle type adsorption combustion agent comprises a biomass particle base body, a foaming agent and a combustion-supporting agent, the foaming agent is a foaming agent solution, the foaming agent solution is added in an amount of 5% to 10% of the mass of the biomass particle base body, the combustion-supporting agent is a combustion-supporting agent solution or a solid combustion-supporting agent, the combustion-supporting agent solution is added in an amount of 3% to 10% of the mass of the biomass particle base body, and the solid combustion-supporting agent is added in an amount of 1% to 10% of the mass of the biomass particle base body.

[0060] The porous biomass particle type adsorption combustion agent has a particle size of 0.5 mm to 2.5 mm, a specific surface area of not less than 150 m2 / g, a water content of not higher than 5%, and a combustion heat value of not lower than 13 MJ / kg.

[0061] Embodiment 2

[0062] In the embodiment, the biomass particle base body is prepared by crushing roots, stems, leaves or straws of various plants into particles by using mechanical equipment, and the particle size of the biomass particle base body is 0.5 mm to 2.5 mm.

[0063] The foaming agent is an environmentally-friendly foaming agent, and the concentration of the foaming agent solution is 1% to 5%.

[0064] The combustion-supporting agent is an environmentally-friendly combustion-supporting agent, and the concentration of the combustion-supporting agent solution is 3% to 30%.

[0065] Embodiment 3

[0066] The porous biomass particle type adsorption combustion agent roll structure is prepared by using the porous biomass particle type adsorption combustion agent of Embodiment 2, and the specific structure is as shown in the drawing. Figures 1-2 The porous biomass particle type adsorption combustion agent roll structure is prepared by using the porous biomass particle type adsorption combustion agent of Embodiment 2, and the specific structure is as shown in the drawing. Figure 1 The porous biomass particle type adsorption combustion agent roll structure is prepared by using the porous biomass particle type adsorption combustion agent of Embodiment 2, and the specific structure is as shown in the drawing. Figures 3-6 The porous biomass particle type adsorption combustion agent roll structure is prepared by using the porous biomass particle type adsorption combustion agent of Embodiment 2, and the specific structure is as shown in the drawing.

[0067] Further, the adsorption combustion agent wrapping layer 6 is made of fiber non-woven fabric, which is made of wood pulp composite fiber, viscose fiber or polypropylene fiber, etc., and does not have any flame-retardant measures; the gram weight of the adsorption combustion agent wrapping layer 6 is 10 g / m 2 ~30 g / m 2 The pore size of the adsorption combustion agent wrapping layer 6 is less than 2.5 mm. The adsorption combustion agent wrapping layer 6 has excellent air permeability, liquid permeability and moisture absorption.

[0068] Embodiment 4

[0069] The preparation method of the porous biomass particle type adsorption combustion agent roll structure is as follows:

[0070] S1, the roots, branches and leaves or straws of plants are crushed by a crusher, and then the crushed particles are granulated by a granulator to obtain a biomass particle matrix, and the specific method is as follows:

[0071] When the biomass raw material is selected, mildewing and decay should be prevented; the selected raw material should contain as few impurities such as sand, clay and the like as possible, because the impurities will affect the particle forming and may cause danger or affect the rock breaking effect during combustion; the selected raw material should have a certain toughness, which is helpful to the particle forming; and the selected raw material source should be stable and sustainable.

[0072] According to the characteristics of different raw materials, a suitable crushing and granulating machine is selected, and before crushing, the large impurities in the raw material are removed, and the excessively long raw material is cut off, and the size of the crushed particles is strictly controlled to make the particle size of the biomass particle type adsorption material be 0.5mm-2.5mm; the crushing process should be kept dry and well ventilated;

[0073] The crushed biomass raw material is granulated by a granulator to obtain a biomass particle matrix.

[0074] S2, the biomass particle matrix is uniformly mixed with a foaming agent and a combustion improver, the mixture is re-granulated, and after drying, a porous biomass particle type adsorption combustion agent 5 is obtained;

[0075] S3, the porous biomass particle type adsorption combustion agent 5 is dried, an adsorption combustion agent wrapping layer 6 is made of fiber non-woven fabric, the porous biomass particle type adsorption combustion agent 5 is filled in the adsorption combustion agent wrapping layer 6, and then the adsorption combustion agent wrapping layer 6 is packaged into an adsorption combustion agent package 7 by means of heat sealing, adhesive sealing or thread sewing, and the adsorption combustion agent package 7 is made into a porous biomass particle type adsorption combustion agent roll 8, wherein the adsorption combustion agent package 7 can be square, rectangular and the like, and the shape has no specific requirement.

[0076] Example 5

[0077] In this embodiment, on the basis of the steps of example 4, the specific method of S2 is as follows:

[0078] The biomass particle matrix is screened and pretreated to remove impurities and particles with incorrect size, the combustion improver and the foaming agent are weighed respectively, the combustion improver (which can be a combustion improver solution or a solid combustion improver) is mixed with the biomass particle matrix by stirring, the foaming agent solution is added and continues to be stirred until the three are uniformly mixed, the mixture is re-granulated, and after drying, a porous biomass particle type adsorption combustion agent 5 is obtained.

[0079] Example 6

[0080] The application of the porous biomass granular adsorbent roll structure: The specific method using the porous biomass granular adsorbent roll structure of this invention is as follows:

[0081] The bottom end of the sealed flexible outer membrane 1 is then filled with porous biomass granular adsorbent roll 8, such as... Figures 7-9 As shown, the porous biomass granular adsorbent roll 8 can be packaged into different sizes. The liquid inlet pipe 2 passes through the porous biomass granular adsorbent roll 8 and extends to the bottom of the flexible outer membrane 1. The inlet of the liquid inlet pipe 2 extends out of the flexible outer membrane 1 and is equipped with an air filling head. Several electric ignition devices 4 are inserted into the flexible outer membrane 1 and come into contact with the porous biomass granular adsorbent roll 8. An exhaust pipe 3 is set at the top of the flexible outer membrane 1. Finally, the top of the flexible outer membrane 1 is sealed.

[0082] The flexible outer membrane 1 is installed at the location where blasting is required. Liquid fracturing medium is filled into the fracturing device through the liquid inlet pipe 2. The liquid fracturing medium is adsorbed onto the porous biomass granular adsorbent roll 8. After filling with the liquid fracturing medium, the liquid inlet pipe 2 and the exhaust pipe 3 are closed. The electric ignition device 4 is ignited. The porous biomass granular adsorbent roll 8 burns rapidly and generates heat energy, which exchanges heat with the liquid fracturing medium, causing the liquid fracturing medium to change from a liquid state to a gas state, releasing high-pressure gas. The release of high-pressure gas achieves rock fracturing.

Claims

1. Use of a porous biomass granule type adsorptive combustion agent roll structure, characterized by, The porous biomass particle type adsorption combustion agent roll structure is prepared by using the porous biomass particle type adsorption combustion agent, and the specific structure is as follows: the porous biomass particle type adsorption combustion agent roll structure comprises an adsorption combustion agent wrapping layer (6) which is filled with the porous biomass particle type adsorption combustion agent (5), and the adsorption combustion agent wrapping layer (6) is encapsulated into a plurality of adsorption combustion agent packs (7) which are connected to each other and independent, and the plurality of adsorption combustion agent packs (7) are made into the porous biomass particle type adsorption combustion agent roll (8). The bottom end of the flexible outer membrane (1) is closed, the porous biomass particle type adsorption combustion agent roll (8) is filled in the flexible outer membrane (1), the liquid inlet pipe (2) is passed through the porous biomass particle type adsorption combustion agent roll (8) and extends to the bottom of the flexible outer membrane (1), the liquid inlet pipe (2) is arranged with an inflation head which is arranged outside the flexible outer membrane (1), a plurality of electric ignition devices (4) are arranged in the flexible outer membrane (1) and are in contact with the porous biomass particle type adsorption combustion agent roll (8), the exhaust pipe (3) is arranged at the top end of the flexible outer membrane (1), and finally the top end of the flexible outer membrane (1) is closed. The flexible outer membrane (1) is installed at the position to be blasted, the liquid cracking medium is filled into the cracking device through the liquid inlet pipe (2), the liquid cracking medium is adsorbed on the porous biomass particle type adsorption combustion agent roll (8), after the liquid cracking medium is filled, the liquid inlet pipe (2) and the exhaust pipe (3) are closed, the electric ignition device (4) is ignited, the porous biomass particle type adsorption combustion agent roll (8) is rapidly combusted and generates heat energy, the heat exchange is carried out between the porous biomass particle type adsorption combustion agent roll (8) and the liquid cracking medium, the liquid cracking medium is changed from liquid state to gaseous state, the high-pressure gas is released, and the rock cracking is realized by releasing the high-pressure gas. The porous biomass particle type adsorption combustion agent roll structure is prepared by using the porous biomass particle type adsorption combustion agent, and the specific structure is as follows: the porous biomass particle type adsorption combustion agent roll structure comprises an adsorption combustion agent wrapping layer (6) which is filled with the porous biomass particle type adsorption combustion agent (5), and the adsorption combustion agent wrapping layer (6) is encapsulated into a plurality of adsorption combustion agent packs (7) which are connected to each other and independent, and the plurality of adsorption combustion agent packs (7) are made into the porous biomass particle type adsorption combustion agent roll (8). The porous biomass particle type adsorption combustion agent comprises a biomass particle base, a foaming agent and a combustion-supporting agent, the foaming agent is a foaming agent solution, the addition amount of the foaming agent solution is 5%-10% of the mass of the biomass particle base, the combustion-supporting agent is a combustion-supporting agent solution or a solid combustion-supporting agent, the addition amount of the combustion-supporting agent solution is 3%-10% of the mass of the biomass particle base, and the addition amount of the solid combustion-supporting agent is 1%-10% of the mass of the biomass particle base. The porous biomass particle type adsorption combustion agent has a particle size of 0.5mm-2.5mm, a specific surface area of not less than 150m2 / g, a water content of not more than 5%, and a combustion heat value of not less than 13MJ / kg. The biomass particle base is prepared by crushing roots or branches of various plants into particles by using mechanical equipment, and the particle size of the biomass particle base is 0.5mm-2.5mm. The concentration of the foaming agent solution is 1%-5%. The concentration of the combustion-supporting agent solution is 3%-30%.

2. The use of the porous biomass pellet type adsorptive combustion agent roll structure according to claim 1, characterized in that, The adsorptive combustion agent wrapping layer (6) is made of fiber non-woven fabric, which is made of wood pulp composite fiber, viscose fiber or polypropylene fiber without any flame retardant measures; the adsorptive combustion agent wrapping layer (6) has a gram weight of 10g / m 2 30g / m 2 , and the adsorptive combustion agent wrapping layer (6) has a hole size less than 2.5mm.

3. The use of the porous biomass pellet type adsorptive combustion agent roll structure according to claim 1, characterized in that, The preparation method of the porous biomass particle type adsorption combustion agent roll structure is as follows: S1, the roots or branches of plants are crushed by using a crusher, and then the crushed particles are granulated by using a granulator to obtain a biomass particle base. S2, the biomass particle matrix is mixed with the foaming agent and the combustion-supporting agent, the mixture is re-pelletized, and the porous biomass particle type adsorption combustion agent (5) is obtained after drying; S3, the porous biomass particle type adsorption combustion agent (5) is dried, the adsorption combustion agent wrapping layer (6) is made of fiber non-woven fabric, the porous biomass particle type adsorption combustion agent (5) is filled in the adsorption combustion agent wrapping layer (6), then the adsorption combustion agent wrapping layer (6) is packaged into the adsorption combustion agent packs (7) which are independent and connected to each other, and the adsorption combustion agent packs (7) are made into the porous biomass particle type adsorption combustion agent rolls (8); The specific method of S2 is that the biomass particle matrix is screened and pretreated to remove impurities and particles of incorrect size, the combustion-supporting agent and the foaming agent are weighed respectively, the combustion-supporting agent is mixed with the biomass particle matrix, the foaming agent solution is added to continue stirring until the three are uniformly mixed, the mixture is re-pelletized, and the porous biomass particle type adsorption combustion agent (5) is obtained after drying.

4. The use of the porous biomass pellet type adsorptive combustion agent roll structure according to claim 3, characterized in that, The specific method of S3 is that the adsorption combustion agent wrapping layer (6) is packaged into the adsorption combustion agent packs (7) which are independent and connected to each other by heat sealing, adhesive sealing or thread sewing.

Citation Information

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