A synchronous elimination method for efficient CO elimination

Abstract

A synchronous elimination method for efficient CO elimination. Push the first CO elimination slurry cartridge to the bottom of the hole and make the second protection mechanism contact the bottom of the hole. Then load the required number of explosive cartridges. Load the second CO elimination slurry cartridge. Use yellow mud to plug the blast hole to form a structure in the order of CO elimination slurry cartridge - explosive cartridge - CO elimination slurry cartridge. Utilize the high temperature and high pressure generated instantaneously by the explosion of the explosive to act on the CO elimination slurry cartridge, causing the CO elimination suspension slurry to evaporate and come into full contact with the CO toxic gas to achieve the CO elimination operation. At the same time, use the droplets of part of the CO elimination suspension slurry to carry away part of the dust, achieving the dust reduction operation while realizing the CO elimination operation. The implementation process of this method is simple and the CO removal effect is ideal. It can eliminate CO from the source. At the same time, it can also play a role in synchronous dust reduction, effectively ensuring the life, health and safety of workers, and at the same time, helping to improve the environmental protection effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of purification of toxic gases, and specifically relates to a synchronous elimination method for efficient elimination of CO. Background Art

[0002] After short-hole blasting operations, the generated poisonous CO gas and dust will be thrown into the roadway space under the action of the shock wave, which is likely to cause the CO concentration in the roadway to be too high after blasting. At the same time, it will also cause the dust concentration in the roadway to increase sharply, which will seriously threaten the personal safety of the operators. At present, water stemming and local ventilation measures are conventional disposal measures for short-hole blasting operations. When the explosive explodes, it will break through the water stemming bag, and the generated droplets can play a role in extinguishing flames and reducing dust. However, this disposal method has limited effect on CO elimination; the local ventilation measure mainly uses a local ventilator and a wind tunnel to send air to the working face, so as to dilute the CO concentration and reduce dust. However, during short-hole blasting operations, the throwing of rocks is likely to hit or even crush the wind tunnel, thus seriously weakening the role of the ventilation measure in reducing toxicity and dust. In summary, the existing disposal measures all have certain limitations, and they cannot achieve the simultaneous elimination of CO and dust. Therefore, there is an urgent need to provide a measure that can simultaneously achieve CO elimination and dust reduction and smoke elimination to ensure the life and health safety of the operators. Summary of the Invention

[0003] In view of the above problems existing in the prior art, the present invention provides a synchronous elimination method for efficient elimination of CO. The implementation process of this method is simple, and the CO removal effect is ideal. It can achieve the purpose of eliminating CO from the source. At the same time, it can also play a role in synchronous dust reduction, effectively ensuring the life and health safety of workers, and at the same time, helping to improve the environmental protection effect.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a synchronous elimination method for efficient CO elimination, which adopts a CO elimination slurry roll, wherein the CO elimination slurry roll includes a slurry elimination roll body and a CO elimination suspended slurry; the slurry elimination roll body includes a cylindrical outer shell, a hard bottom plate, a support grid, an anti-coagulation ball, a clip, an outer connecting block, an inner connecting block, a first protection mechanism and a second protection mechanism; the outer shell is a flexible shell; the hard bottom plate is fixedly packaged at the head end of the outer shell, and a plurality of outer connecting blocks are fixedly connected to the outer surface around the axis, and an inner connecting block is fixedly connected to the axis on the inner side; the support grid is a cross-shaped support member with leakage holes distributed thereon, which is inserted into the inner cavity of the outer shell, and the center of its head end is fixedly connected to the hard bottom plate through the inner connecting block, the support grid is used to support the cylindrical state of the outer shell and divide the inner cavity of the outer shell into four fan-shaped cavities; the anti-coagulation ball is a solid ball; a plurality of anti-coagulation balls are assembled inside the outer shell and distributed in the four fan-shaped cavities; the clip is located on the outside of the end of the support grid, The cam is secured to the outside of the housing by a plurality of latches, and the cam is secured to the outside of the housing by a plurality of latches.

[0005] The simultaneous elimination method for efficient CO removal includes the following steps:

[0006] Step 1: Filling operation;

[0007] S11: Complete the drilling of blastholes at the scheduled blasting location;

[0008] S12: pushing the first CO2 elimination slurry roll to the bottom of the blasthole, and making the second protection mechanism of the CO2 elimination slurry roll contact with the hole bottom;

[0009] S13: Push the required number of explosive cartridges into the blast holes one by one. At the same time, ensure that the end of the inner explosive cartridge contacts the shock-absorbing arc plate in the first protection mechanism of the first CO elimination slurry cartridge. Among them, a detonator is buried in the outermost explosive cartridge. When pushing the outermost explosive cartridge, ensure that the blasting wire connected to the detonator extends along the edge of the blast hole to the outside of the hole opening.

[0010] S14: Make the side of the second protection mechanism of the second CO elimination slurry cartridge close to the bottom of the hole. Then, push the second CO elimination slurry cartridge into the blast hole. At the same time, ensure that the shock-absorbing arc plate in the first protection mechanism of the second CO elimination slurry cartridge contacts the end of the outermost explosive cartridge.

[0011] S15: Plug the blast hole with yellow mud to form a charging structure in the order of CO elimination slurry cartridge - explosive cartridge - CO elimination slurry cartridge inside the blast hole, and complete the filling operation of the blast hole.

[0012] Step Two: CO elimination operation.

[0013] S21: After completing the filling operation of the blast hole, lead out the blasting wire. Then, evacuate the personnel to the outside of the safe area, and use the blasting wire to detonate the detonator to detonate the explosive cartridge by detonating the detonator.

[0014] S22: Use the high temperature and high pressure generated instantaneously by the explosion of the explosive to act on the CO elimination slurry cartridge, so that the CO elimination suspension slurry evaporates and fully contacts the CO toxic gas to achieve the CO elimination operation. At the same time, use the droplets of part of the CO elimination suspension slurry to take away part of the dust, and achieve the dust reduction operation while achieving the CO elimination operation.

[0015] Furthermore, in order to effectively improve the fluidity of the CO elimination suspension slurry to avoid condensation, the support grid includes a first grid and a second grid.

[0016] The lengths of the first grid and the second grid are both less than the length of the outer shell, and their widths are both less than the inner diameter of the outer shell. The first grid has a strip-shaped groove; the middle section in the width direction of the second grid is inserted into the strip-shaped groove and is perpendicular to the first grid.

[0017] The leakage holes on the first grid are a number of rectangular holes distributed all over its surface. The center of its first end is fixedly connected with a connecting shaft and is fixedly connected with an inner connecting block through the connecting shaft; the leakage holes on the second grid are a number of circular holes distributed all over its surface.

[0018] As a preference, the outer shell is made of a flame-retardant material; the shock-absorbing arc plate is made of a flame-retardant material, and a number of circular dispersion holes are distributed all over the surface of the shock-absorbing arc plate and the flexible cushion layer; the connecting support rod is a rigid rod and is made of a flame-retardant material.

[0019] Furthermore, in order to effectively reduce the usage amount of the CO eliminator, and at the same time, to improve the elimination effect and efficiency of CO, and also to enable the formed CO elimination suspension slurry to have a certain dust reduction effect, the preparation method of the CO elimination suspension slurry is as follows:

[0020] A1: Prepare the first suspension; First, synthesize a high-efficiency CO eliminator by a hydrothermal method, a coprecipitation method or a microscopic morphology control method. The CO eliminator is a transition metal oxide composed of one or more elements selected from iron, copper, manganese and cerium; Then grind the CO eliminator into fine powder, and then add a liquid inorganic mineral binder thereto, and fully stir it into a slurry state to form the first suspension;

[0021] A2: Prepare the second suspension; Stir and disperse the prepared first suspension, and dropwise add a surfactant thereto, and fully stir after the addition is completed to form the second suspension;

[0022] A3: Prepare the CO elimination suspension slurry; Add a set amount of deionized water and an auxiliary solvent to the second suspension, and then perform a second stirring and dispersion to form the CO elimination suspension slurry.

[0023] Furthermore, in order to ensure that the prepared CO elimination suspension slurry has a better CO elimination effect, and at the same time, to ensure that the CO elimination suspension slurry has better heat absorption capacity and dust reduction capacity, in A1, the particle size of the CO eliminator is 0.01 - 0.075 mm, and its mass concentration is 1% - 15% based on the total mass of the CO elimination suspension slurry; The component of the liquid inorganic mineral binder is one or more silicate materials, and the mass ratio of the CO eliminator to the liquid inorganic mineral binder is 1:1 - 1.4; In A2, the surfactant is one of non-ionic surfactants, and the mass concentration of the surfactant is 0.0001% - 0.03% based on the total mass of the CO elimination suspension slurry; In A3, the auxiliary solvent is one of organic acid salts, and the volume ratio of deionized water to the auxiliary solvent is 20 - 35:1.

[0024] In the present invention, for the adopted CO elimination slurry roll, its outer shell is a flexible shell, and CO elimination suspension slurry is filled inside. In this way, after the explosive explodes, it can ensure that the outer shell can quickly break under high temperature and high pressure conditions, and is conducive to the rapid action of high temperature and high pressure conditions on the CO elimination slurry roll, so that the elimination slurry can be quickly dispersed, evaporated and fully contact with CO gas, achieving the effect of synchronous elimination of CO. At the same time, it can also use the slurry droplets to absorb part of the dust in the explosion environment, playing a role in synchronous dust removal, effectively reducing the hazards of CO poisonous gas and fine dust in blasting operations. Inserting a cross-shaped support grid into the inside of the outer shell can use the support of the support grid to keep the flexible outer shell in a cylindrical state all the time. At the same time, it can also use the support grid to divide the space inside the outer shell into four fan-shaped cavities, so that it can not only play a certain isolation role on the subsequently filled CO elimination suspension slurry through the support grid, but also promote the interactive flow of CO elimination suspension slurry in different fan-shaped cavities through the leakage holes on the support grid itself, which is conducive to avoiding the condensation of CO elimination suspension slurry and ensuring the subsequent use effect. By installing several anti-condensation balls in the inner cavity of the outer shell, and at the same time, making several anti-condensation balls distributed in the four fan-shaped cavities, after the CO elimination slurry is filled in the later stage, the anti-condensation effect can be achieved through the stirring action of the anti-condensation balls. At the same time, it can cooperate with the leakage holes on the support grid to enhance the fluidity of the CO elimination suspension slurry, further ensuring the subsequent use effect. On the premise of ensuring good fluidity of the CO elimination suspension slurry, it is conducive to significantly reducing the usage amount of the CO eliminator, and can ensure that the CO elimination suspension slurry can be evaporated by the high temperature and high pressure environment more quickly, thereby significantly improving the elimination effect and efficiency of CO. At the same time, it can also use some slurry droplets to play a role in dust reduction. Assembling a buckle on the outside of the end section of the outer shell can use the buckle to quickly close the end of the outer shell, so that the CO elimination suspension slurry can be stored in a closed space, which is conducive to the more rapid and concentrated evaporation of the internal CO elimination suspension slurry during the blasting process, further improving the CO elimination effect, and at the same time, it can also better play a role in dust reduction. An inner connection block is installed inside the hard bottom plate, which can facilitate the positioning connection of the support grid by using the inner connection block, so as to avoid the separation of the support grid from the outer shell. In addition, the support grid fixedly connected to the outer shell is conducive to promoting the fluidity of the CO elimination suspension slurry in different fan-shaped cavities, further avoiding the condensation of the CO elimination suspension slurry. For the first protection mechanism, connecting the support frame to the hard bottom plate through multiple support rods can use the length of the support rods to isolate a relatively long buffer space I, so that it can effectively prevent the CO elimination slurry roll on one side of the first protection mechanism from accidentally breaking.In addition, during the specific use process, since the first protection mechanism is in contact with the explosive cartridge, this buffer space can be utilized to effectively reduce the impact force generated at the initial moment of the explosion, thereby avoiding the situation where the CO elimination slurry cartridge is pushed away by the impact force at the initial moment of the explosion. This ensures that the high-temperature and high-pressure environment generated by the explosion can quickly and effectively act on the CO elimination slurry cartridge, causing the outer shell to rupture rapidly and the internal CO elimination suspension slurry to evaporate quickly. As a result, it can come into contact with the generated CO gas in a timely and sufficient manner, enabling the efficient implementation of the CO elimination operation and significantly improving the effect of in-situ CO elimination. The shock-absorbing arc-shaped plate is fixedly connected to the support frame, and a flexible cushion layer is covered on its inner surface. On the one hand, the flexible cushion layer can be used to form a relatively short section of flexible buffer space. On the other hand, the recessed space in the shock-absorbing arc-shaped plate can be used to wrap the end of the explosive cartridge, thereby playing a role in positioning the explosive cartridge. For the second protection structure, the connecting plate is connected to the end of the outer shell, and the umbrella-shaped elastic frame is hinged to the connecting plate through a pin shaft. In this way, a buffer space two can be formed between the elastic frame with elastic deformation ability and the buckle member, effectively preventing the CO elimination slurry cartridge on one side of the second protection mechanism from being accidentally ruptured. In addition, the hinged connection method of the elastic frame enables it to have a certain swinging amplitude. In the case where the outer shell is a flexible shell, the elastic frame can have better adaptability during the installation process by swinging flexibly, ensuring the buffering effect of the buffer space two. The two CO elimination slurry cartridges are respectively arranged on both sides of the explosive cartridge, and their CO elimination effect is triggered by the high-temperature and high-pressure conditions generated by the explosion, thereby possessing the ability of in-situ CO elimination. It can achieve the efficient CO elimination operation under the premise of using less CO eliminator. The CO elimination slurry cartridge adopted in the present invention has a dual protection structure. It can not only reduce the usage amount of the CO eliminator, but also achieve the purpose of eliminating the toxic and harmful CO gas generated by short-hole blasting operations from the source. At the same time, it can also play a certain role in smoke elimination and dust reduction during the blasting operation, achieving the effect of the trinity of in-situ CO elimination, smoke elimination, and dust reduction in the blast hole to a certain extent. It improves the efficiency of the CO elimination operation and effectively guarantees the life, health, and safety of workers.

[0025] The implementation process of this method is simple and the CO removal effect is ideal. It forms a charging structure of CO elimination slurry roll - explosive roll - CO elimination slurry roll inside the blast hole. Through this charging structure and the structure of the CO elimination slurry roll itself, on the premise of effectively reducing the usage amount of the CO eliminator, it fully realizes the purpose of efficiently eliminating the toxic and harmful CO gas generated by short-hole blasting operations from the source. At the same time, it can also use the CO elimination suspension slurry to absorb and carry away the dust generated during the explosion process, thereby playing a role in synchronously reducing dust. To a certain extent, it can achieve the effect of tri - unity of CO elimination, smoke elimination, and dust reduction in - situ in the blast hole, thus effectively ensuring the life, health, and safety of the operators. Description of the Drawings

[0026] Figure 1 is a schematic structural diagram of the CO elimination slurry roll in the present invention;

[0027] Figure 2 is Figure 1 a sectional view taken along the A - A direction of

[0028] Figure 3 is a schematic structural diagram of the first grid in the present invention;

[0029] Figure 4 is a schematic structural diagram of the second grid in the present invention;

[0030] Figure 5 is an assembly schematic diagram of the CO elimination slurry roll in the present invention;

[0031] Figure 6 is a schematic diagram of the CO elimination structure of the CO elimination slurry roll - explosive roll - CO elimination slurry roll in the present invention.

[0032] In the figure: 1. CO elimination slurry roll, 2. Outer shell, 3. Hard bottom plate, 4. Support grid, 5. Anti - coagulation ball, 6. Buckle part, 7. Outer connection block, 8. Inner connection block, 9. First protection mechanism, 10. Second protection mechanism, 11. Connecting support rod, 12. Support frame, 13. Shock - absorbing arc plate, 14. Flexible cushion layer, 15. Connecting plate, 16. Elastic frame, 17. Pin shaft, 18. First grid, 19. Second grid, 20. Strip - shaped groove, 21. Connecting shaft, 22. Elimination slurry roll main body, 23. Blast hole, 24. Explosive roll, 25. Detonator, 26. Blasting wire, 27. Yellow mud, 28. Cone section. Detailed Implementation Manner

[0033] The present invention will be further described below with reference to the drawings.

[0034] As Figures 1 to 6As shown in the figure, the present invention provides a synchronous elimination method for efficient CO elimination, which adopts a CO elimination slurry roll 1. The CO elimination slurry roll 1 includes an elimination slurry roll main body 22 and a CO elimination suspension slurry. The elimination slurry roll main body 22 includes a cylindrical outer shell 2, a hard bottom plate 3, a support grid 4, anti-coagulation balls 5, a buckle member 6, an outer connection block 7, an inner connection block 8, a first protection mechanism 9 and a second protection mechanism 10. The outer shell 2 is a flexible shell. The hard bottom plate 3 is fixedly encapsulated at the head end of the outer shell 2. A plurality of outer connection blocks 7 are fixedly connected around the axis on its outer side surface, and an inner connection block 8 is fixedly connected at the axis center on its inner side surface. Among them, neither the outer connection block 7 nor the inner connection block 8 on the hard bottom plate 3 penetrates its thickness direction during installation to prevent the later leakage of the CO elimination suspension from the side of the hard bottom plate 3. The support grid 4 is a cross-shaped support member with leakage holes all over it. It is inserted into the inner cavity of the outer shell 2, and its head end center is fixedly connected to the hard bottom plate 3 through the inner connection block 8. The support grid 4 is used to support the cylindrical state of the outer shell 2 and divide the inner cavity of the outer shell 2 into four fan-shaped cavities. The anti-coagulation balls 5 are solid balls with a smooth surface. The anti-coagulation balls 5 are used to enhance the fluidity of the CO elimination suspension slurry to prevent excessive adhesion. A number of anti-coagulation balls 5 are assembled inside the outer shell 2 and distributed in the four fan-shaped cavities. The buckle member 6 is located outside the end of the support grid 4. It radially contracts and buckles on the outside of the outer shell 2 to close the end of the outer shell 2. A slurry filling space is formed among the buckle member 6, the hard bottom plate 3 and the outer shell 2. The first protection mechanism 9 is arranged outside the head end of the outer shell 2 and includes a plurality of connecting support rods 11, a support frame 12 and a shock-absorbing arc plate 13. The number of the plurality of connecting support rods 11 corresponds to the number of the plurality of outer connection blocks 7, and the ends of the plurality of connecting support rods 11 are respectively fixedly connected to the hard bottom plate 3 through the plurality of outer connection blocks 7. The end of the support frame 12 is fixedly connected to the head ends of the plurality of connecting support rods 11. The end of the shock-absorbing arc plate 13 is fixedly connected to the head end of the support frame 12. Its head end has an arc-shaped groove one recessed towards the end, and a flexible cushion layer 14 is covered in the arc-shaped groove one. The second protection mechanism 10 is arranged outside the end of the outer shell 2 and includes a connecting plate 15 and an elastic frame 16. The connecting plate 15 is fixedly connected to the end of the outer shell 2. The elastic frame 16 is in an umbrella shape. Its head end is hinged to the central area of the connecting plate 15 through a pin shaft 17, and its end has an arc-shaped groove two recessed towards the head end. The CO elimination suspension slurry is filled in the slurry filling space.

[0035] As a preference, the radial dimensions of the first protection mechanism 9 and the second protection mechanism 10 can be slightly larger than the radial dimension of the outer shell 2, but both are smaller than the size of the blast hole 23, so as to be smoothly pushed into the blast hole 23.

[0036] As a preference, while closing the end of the outer housing 2, the buckle member 6 further forms a tapered section 28 at the end of the outer housing 2; as a further preference, the connecting plate 15 is encapsulated at the open end of the tapered section 28; by forming the tapered section 28 at the end of the outer housing 2 with the buckle member 6 and then connecting the second protection mechanism 10 to the open end of the tapered section 28, a buffer section can be further formed by the tapered section 28, so as to cooperate with the second protection mechanism 10 to form a double protection mechanism for the end side of the CO elimination slurry roll 1;

[0037] The synchronous elimination method for efficient CO elimination includes the following steps:

[0038] Step 1: Loading operation;

[0039] S11: Drilling the blast hole 23 at the predetermined blasting position;

[0040] S12: Push the first CO elimination slurry roll 1 to the bottom of the blast hole 23 and make the second protection mechanism 10 of the CO elimination slurry roll 1 contact the bottom of the hole;

[0041] S13: Push the required number of explosive cartridges 24 into the blast hole one by one. At the same time, ensure that the end of the inner explosive cartridge 24 contacts the shock-absorbing arc plate 13 in the first protection mechanism 9 of the first CO elimination slurry roll 1; among them, a detonator 25 is buried in the outermost explosive cartridge 24. When pushing the outermost explosive cartridge 24, ensure that the blasting wire 26 connected to the detonator 25 extends along the edge of the blast hole 23 to the outside of the hole opening;

[0042] S14: Make the side of the second protection mechanism 10 of the second CO elimination slurry roll 1 close to the bottom of the hole, and then push the second CO elimination slurry roll 1 into the blast hole 23. At the same time, ensure that the shock-absorbing arc plate 13 in the first protection mechanism 9 of the second CO elimination slurry roll 1 contacts the end of the outermost explosive cartridge 24;

[0043] S15: Plug the blast hole 23 with yellow mud 27 to form a charging structure in the order of CO elimination slurry roll 1 - explosive cartridge 24 - CO elimination slurry roll 1 inside the blast hole 23, and complete the loading operation of the blast hole 23;

[0044] Step 2: CO elimination operation;

[0045] S21: After the loading operation of the blast hole 23 is completed, lead out the blasting wire 26, then evacuate the personnel to the outside of the safe area, and then detonate the detonator 25 by using the blasting wire 26 to detonate the explosive cartridge 24 through the detonation of the detonator 25;

[0046] S22: Use the high temperature and high pressure generated instantaneously by the explosion of explosives to act on the CO elimination slurry roll 1, causing the CO elimination suspension slurry to evaporate and come into full contact with the CO poisonous gas, so as to achieve the CO elimination operation. At the same time, use the droplets of part of the CO elimination suspension slurry to carry away part of the dust, and while achieving the CO elimination operation, achieve the operation of reducing dust.

[0047] In order to effectively improve the fluidity of the CO elimination suspension slurry and prevent coagulation, the support grid 4 includes a first grid 18 and a second grid 19;

[0048] The lengths of the first grid 18 and the second grid 19 are both less than the length of the outer housing 2, and their widths are both less than the inner diameter of the outer housing 2; a strip-shaped slot 20 for the second grid 19 to pass through is provided along the length direction in the central area in the width direction of the first grid 18; the middle section in the width direction of the second grid 19 is inserted into the strip-shaped slot 20 and is perpendicular to the first grid 18;

[0049] The leakage holes on the first grid 18 are a number of rectangular holes distributed all over its surface, and a connecting shaft 21 is fixedly connected to the center of its head end and is fixedly connected to the inner connecting block 8 through the connecting shaft 21; the leakage holes on the second grid 19 are a number of circular holes distributed all over its surface.

[0050] As a preference, the outer housing 2 is made of a flame-retardant material; the shock-absorbing arc plate 13 is made of a flame-retardant material, and a number of circular dispersion holes are provided all over the surface of the shock-absorbing arc plate 13 and the flexible cushion layer 14; the connecting support rod 11 is a rigid rod and is made of a flame-retardant material.

[0051] In order to effectively reduce the usage amount of the CO eliminator, at the same time, in order to improve the elimination effect and efficiency of CO, and also enable the formed CO elimination suspension slurry to have a certain dust reduction effect, the preparation method of the CO elimination suspension slurry is as follows:

[0052] A1: Prepare the first suspension; first synthesize a high-efficiency CO eliminator by hydrothermal method, co-precipitation method or micro-topography control method. The CO eliminator is a transition metal oxide composed of one or more elements of iron, copper, manganese and cerium; then grind the CO eliminator into fine powder, and then add a liquid inorganic mineral binder thereto and stir it fully into a slurry state to form the first suspension;

[0053] A2: Prepare the second suspension; stir and disperse the prepared first suspension, and dropwise add a surfactant thereto, and stir it fully after the addition is completed to form the second suspension;

[0054] A3: Preparation of the CO elimination suspension slurry: Add a set amount of deionized water and an auxiliary solvent to the second suspension, followed by a second stirring and dispersion to form the CO elimination suspension slurry.

[0055] To ensure that the prepared CO elimination suspension slurry has a better CO elimination effect, and at the same time, to ensure that the CO elimination suspension slurry has good heat absorption capacity and dust reduction and removal capacity. In A1, the particle size of the CO eliminator is 0.01 - 0.075 mm, and its mass concentration is 1% - 15% based on the total mass of the CO elimination suspension slurry; the liquid inorganic mineral binder component is one or more silicate materials, and the mass ratio of the CO eliminator to the liquid inorganic mineral binder is 1:1 - 1.4; in A2, the surfactant is one of non-ionic surfactants, and the mass concentration of the surfactant is 0.0001% - 0.03% based on the total mass of the CO elimination suspension slurry; in A3, the auxiliary solvent is one of organic acid salts, and the volume ratio of deionized water to the auxiliary solvent is 20 - 35:1.

[0056] In the present invention, for the CO elimination slurry roll adopted, its outer shell is a flexible shell, and the CO elimination suspension slurry is filled inside. In this way, after the explosive explodes, it can ensure that the outer shell can quickly rupture under high temperature and high pressure conditions, and is conducive to the rapid action of high temperature and high pressure conditions on the CO elimination slurry roll, so that the elimination slurry can be quickly dispersed, evaporated and fully contact with CO gas, achieving the effect of synchronous elimination of CO. At the same time, the slurry droplets can be used to absorb part of the dust in the explosion environment, playing a role in synchronous dust removal, effectively reducing the hazards of CO poisonous gas and fine dust in blasting operations. Inserting a cross-shaped support grid into the interior of the outer shell can use the support of the support grid to keep the flexible outer shell in a cylindrical state all the time. At the same time, the space inside the outer shell can be divided into four fan-shaped cavities by the support grid, so that it can not only play a certain isolation role for the subsequently filled CO elimination suspension slurry through the support grid, but also promote the interactive flow of the CO elimination suspension slurry in different fan-shaped cavities through the leakage holes on the support grid itself, which is conducive to avoiding the condensation of the CO elimination suspension slurry and ensuring the subsequent use effect. By installing several anti-condensation balls in the inner cavity of the outer shell, and at the same time, distributing several anti-condensation balls in the four fan-shaped cavities, after the CO elimination slurry is filled in the later stage, the anti-condensation effect can be achieved through the stirring action of the anti-condensation balls. At the same time, it can cooperate with the leakage holes on the support grid to enhance the fluidity of the CO elimination suspension slurry, further ensuring the subsequent use effect. On the premise of ensuring good fluidity of the CO elimination suspension slurry, it is conducive to significantly reducing the usage amount of the CO eliminator, and can ensure that the CO elimination suspension slurry can be evaporated by the high temperature and high pressure environment more quickly, thereby significantly improving the elimination effect and efficiency of CO. At the same time, part of the slurry droplets can be used to play a role in dust reduction. Installing a snap-fastener on the outside of the end section of the outer shell can use the snap-fastener to quickly seal the end of the outer shell, so that the CO elimination suspension slurry can be stored in a closed space, which is conducive to the more rapid and concentrated evaporation of the internal CO elimination suspension slurry during blasting, further improving the CO elimination effect, and at the same time, it can also better play a role in dust reduction. Installing an inner connecting block inside the hard bottom plate can facilitate the positioning connection of the support grid by using the inner connecting block, so as to avoid the separation of the support grid from the outer shell. In addition, the support grid fixedly connected to the outer shell is conducive to promoting the fluidity of the CO elimination suspension slurry in different fan-shaped cavities, further avoiding the condensation of the CO elimination suspension slurry. For the first protection mechanism, connecting the support frame to the hard bottom plate through multiple support rods can use the length of the support rods to isolate a relatively long buffer space I, so that it can effectively prevent the CO elimination slurry roll on one side of the first protection mechanism from accidentally rupturing.In addition, during the specific usage process, since the first protection mechanism is in contact with the explosive cartridge, this buffer space can be utilized to effectively reduce the impact force generated at the initial moment of the explosion, thereby avoiding the situation where the CO elimination slurry cartridge is pushed away by the impact force at the initial moment of the explosion. This ensures that the high-temperature and high-pressure environment generated by the explosion can quickly and effectively act on the CO elimination slurry cartridge, causing the outer casing to rupture rapidly and the internal CO elimination suspension slurry to evaporate quickly. Subsequently, it can come into contact with the generated CO gas in a timely and sufficient manner, thus enabling the efficient implementation of the CO elimination operation and significantly improving the effect of in-situ CO elimination. The shock-absorbing arc-shaped plate is fixedly connected to the support frame, and a flexible cushion layer is covered on its inner surface. On the one hand, the flexible cushion layer can be used to form a relatively short flexible buffer space. On the other hand, the recessed space in the shock-absorbing arc-shaped plate can be used to wrap the end of the explosive cartridge, thereby playing a role in positioning the explosive cartridge. For the second protection structure, the connecting plate is connected to the end of the outer casing, and the umbrella-shaped elastic frame is hinged to the connecting plate through a pin shaft. In this way, a buffer space two can be formed between the elastic frame with elastic deformation ability and the buckle, which can effectively prevent the CO elimination slurry cartridge on one side of the second protection mechanism from being accidentally ruptured. In addition, the hinged connection method of the elastic frame enables it to have a certain swing amplitude. In the case where the outer casing is a flexible casing, the elastic frame can have better adaptability through flexible swinging during the installation process, ensuring the buffering effect of the buffer space two. The two CO elimination slurry cartridges are respectively arranged on both sides of the explosive cartridge, and their CO elimination effect is triggered by the high-temperature and high-pressure conditions generated by the explosion, thereby possessing the ability of in-situ CO elimination. It can achieve the efficient CO elimination operation on the premise of using less CO elimination agent. The CO elimination slurry cartridge adopted in the present invention has a dual protection structure, which can not only reduce the usage amount of the CO elimination agent, but also achieve the purpose of eliminating the toxic and harmful CO gas generated by shallow-hole blasting operations from the source. At the same time, it can also play a certain role in smoke elimination and dust reduction during the blasting operation, achieving the effect of the trinity of CO elimination, smoke elimination, and dust reduction in the blast hole in a certain extent. It improves the efficiency of the CO elimination operation and effectively guarantees the life, health, and safety of workers.

[0057] The implementation process of this method is simple, and the CO removal effect is ideal. It forms a charging structure of CO elimination slurry roll - explosive roll - CO elimination slurry roll inside the blast hole. Through this charging structure combined with the structure of the CO elimination slurry roll itself, it can effectively reduce the usage amount of the CO eliminator and fully achieve the purpose of efficiently eliminating the toxic and harmful CO gas generated by short-hole blasting operations from the source. At the same time, it can also use the CO elimination suspension slurry to absorb and carry away the dust generated during the explosion process, thereby playing a role in synchronously reducing dust. To a certain extent, it can achieve the effect of triad of CO elimination, smoke elimination, and dust reduction in-situ in the blast hole, thus effectively ensuring the life, health, and safety of the operators.

Claims

1. A synchronous elimination method for efficient CO elimination, using a CO elimination slurry roll (1), the CO elimination slurry roll (1) comprising an elimination slurry roll body (22) and CO elimination suspended slurry; the elimination slurry roll body (22) comprising a cylindrical outer shell (2), a hard bottom plate (3), a support grid (4), an anti-condensation ball (5), a fastener (6), an outer connecting block (7), an inner connecting block (8), a first protection mechanism (9) and a second protection mechanism (10); the outer shell (2) is a flexible shell; the hard bottom plate (3) is fixedly encapsulated at the head end of the outer shell (2), and a plurality of outer connecting members are fixedly connected to the outer surface of the outer shell around the axis. The block (7) is fixedly connected to an inner connecting block (8) at the axis center on the inner side thereof; the support grid (4) is a cross-shaped support member with leakage holes all over it, which is inserted into the inner cavity of the outer shell (2), and the center of its head end is fixedly connected to the hard bottom plate (3) through the inner connecting block (8); the support grid (4) is used to support the cylindrical state of the outer shell (2) and divide the inner cavity of the outer shell (2) into four fan-shaped cavities; the anti-condensation ball (5) is a solid ball; a plurality of anti-condensation balls (5) are assembled inside the outer shell (2) and distributed in the four fan-shaped cavities; the snap-fit member (6) is located on the outside of the end of the support grid (4), and is radially contracted and buckled into the outer shell (2) and closes the end of the outer shell (2); a slurry filling space is formed between the snap fastener (6), the hard bottom plate (3) and the outer shell (2); the first protection mechanism (9) is arranged on the outside of the head end of the outer shell (2), and comprises a plurality of connecting support rods (11), a support frame (12) and a shock-absorbing arc plate (13); the number of the plurality of connecting support rods (11) corresponds to the number of the plurality of external connecting blocks (7), and the ends of the plurality of connecting support rods (11) are fixedly connected to the hard bottom plate (3) through the plurality of external connecting blocks (7); the end of the support frame (12) is fixedly connected to the head ends of the plurality of connecting support rods (11); The end of the shock-absorbing arc plate (13) is fixedly connected to the head end of the support frame (12), and the head end has an arc-shaped groove 1 that is concave toward the end, and the arc-shaped groove 1 is covered with a flexible cushion layer (14); the second protection mechanism (10) is arranged on the outside of the end of the outer shell (2), and comprises a connecting plate (15) and an elastic frame (16); the connecting plate (15) is fixedly connected to the end of the outer shell (2); the elastic frame (16) is umbrella-shaped, and the head end thereof is hinged to the central area of the connecting plate (15) through a pin (17), and the tail end thereof has an arc-shaped groove 2 that is concave toward the head end; the CO2 elimination suspension slurry is filled in the slurry filling space; It is characterized in that The following steps are involved: Step 1: Filling operation; S11: Complete the drilling operation of the blast hole (23) at the predetermined blasting location; S12: pushing the first CO2 elimination slurry roll (1) to the bottom of the blasthole (23), and making the second protection mechanism (10) of the CO2 elimination slurry roll (1) contact the hole bottom; S13: Push the required number of explosive cartridges (24) one by one into the blast hole. At the same time, ensure that the end of the inner explosive cartridge (24) is in contact with the shock-absorbing arc plate (13) in the first protection mechanism (9) of the first CO elimination slurry cartridge (1); among them, a detonator (25) is buried in one explosive cartridge (24) at the outer end. When pushing the explosive cartridge (24) at the outer end, ensure that the blasting wire (26) connected to the detonator (25) extends along the edge of the blast hole (23) to the outside of the hole opening; S14: Make the second protection mechanism (10) of the second CO elimination slurry cartridge (1) close to the side of the hole bottom. Then, push the second CO elimination slurry cartridge (1) into the blast hole (23). At the same time, ensure that the shock-absorbing arc plate (13) in the first protection mechanism (9) of the second CO elimination slurry cartridge (1) is in contact with the end of the outer explosive cartridge (24); S15: Use yellow mud (27) to block the blast hole (23) to form a charging structure in the order of CO elimination slurry cartridge (1) - explosive cartridge (24) - CO elimination slurry cartridge (1) inside the blast hole (23), and complete the filling operation of the blast hole (23); Step Two: CO elimination operation; S21: After completing the filling operation of the blast hole (23), lead out the blasting wire (26). Then, evacuate the personnel to the outside of the safe area, and use the blasting wire (26) to detonate the detonator (25), and detonate the explosive cartridge (24) by detonating the detonator (25); S22: Use the high temperature and high pressure generated instantaneously by the explosion of the explosive to act on the CO elimination slurry cartridge (1), so that the CO elimination suspension slurry evaporates and fully contacts the CO poisonous gas to achieve the CO elimination operation. At the same time, use the droplets of part of the CO elimination suspension slurry to carry away part of the dust, and achieve the dust reduction operation while achieving the CO elimination operation.

2. The synchronous elimination method for efficient CO elimination according to claim 1, wherein The support grid (4) includes a first grid (18) and a second grid (19); The lengths of the first grid (18) and the second grid (19) are both less than the length of the outer shell (2), and their widths are both less than the inner diameter of the outer shell (2); a strip-shaped groove (20) for the second grid (19) to pass through is provided along the length direction in the central area of the width direction of the first grid (18); the middle section in the width direction of the second grid (19) is inserted into the strip-shaped groove (20) and is perpendicular to the first grid (18); The leakage holes on the first grid (18) are a number of rectangular holes distributed all over its surface. The center of the first end is fixedly connected with a connecting shaft (21), and is fixedly connected with the inner connecting block (8) through the connecting shaft (21); the leakage holes on the second grid (19) are a number of circular holes distributed all over its surface.

3. A synchronous elimination method for efficient CO elimination according to claim 1, characterized in that: The outer shell (2) is made of a flame-retardant material; the shock-absorbing arc plate (13) is made of a flame-retardant material, and a number of circular dispersion holes are provided all over the surface of the shock-absorbing arc plate (13) and the flexible cushion layer (14); the connecting support rod (11) is a rigid rod and is made of a flame-retardant material.

4. A synchronous elimination method for efficient CO elimination according to claim 3, characterized in that The preparation method of the CO elimination suspension slurry is as follows: A1: Preparing a first suspension; first, synthesizing a high-efficiency CO eliminator by a hydrothermal method, a coprecipitation method, or a micromorphology control method, wherein the CO eliminator is a transition metal oxide composed of one or more elements selected from the group consisting of iron, copper, manganese, and cerium; then, grinding the CO eliminator into a fine powder, adding a liquid inorganic mineral binder thereto, and thoroughly stirring the mixture into a slurry to form a first suspension; A2: preparing a second suspension; stirring and dispersing the prepared first suspension, and adding a surfactant dropwise thereto, stirring thoroughly after the addition is completed to form a second suspension; A3: Preparation of CO elimination suspension slurry; A set amount of deionized water and an auxiliary solvent are added to the second suspension, and then stirred and dispersed for a second time to form a CO elimination suspension slurry.

5. The synchronous elimination method for efficient CO elimination according to claim 4, characterized in that, In A1, the particle size of the CO eliminator is 0.01 to 0.075 mm, and its mass concentration is 1% to 15%, based on the total mass of the CO eliminator suspension slurry; the liquid inorganic mineral binder component is one or more silicate materials, and the mass ratio of the CO eliminator to the liquid inorganic mineral binder is 1:1 to 1.4; in A2, the surfactant is a non-ionic surfactant, and the mass concentration of the surfactant is 0.0001% to 0.03%, based on the total mass of the CO eliminator suspension slurry; in A3, the auxiliary solvent is an organic acid salt, and the volume ratio of deionized water to the auxiliary solvent is 20 to 35:1.

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