Portable emulsion explosive mixed loading system and mixed loading method for laneway construction

Abstract

The invention discloses a portable emulsion explosive mixed loading system and method for laneway construction, the system comprises a shell, an equipment bin, a matrix bin, a sensitizer bin, a pneumatic pumping assembly and a static mixer, the equipment bin, the matrix bin and the sensitizer bin are arranged in the shell; the pneumatic pumping assembly and the static mixer are arranged in the equipment bin, the matrix bin and the sensitizer bin are connected with a feeding port of the static mixer through the pneumatic pumping assembly, and a discharging port of the static mixer is used for being connected with a chemical conveying pipe. The problem that large machinery cannot be used for charging in narrow areas of small tunnels, roadways and other construction sites can be solved, manual charging blasting is replaced, the labor intensity is reduced, and the blasting safety is improved.

Description

Technical Field

[0001] The invention relates to a portable emulsion explosive mixing system and a mixing method for shaft and tunnel construction, belonging to the technical field of civil blasting equipment and engineering blasting. Background Art

[0002] With the continuous improvement of production safety requirements and technical levels, mining production has continuously reduced manpower through mechanization and reduced labor intensity. On-site mixed explosives only involve semi-finished products (latex matrix) during production, transportation, and charging. The latex matrix is ​​usually classified as Class 5.1 (oxidizer) and is mechanized or automated charging, which has high safety. In order to improve blasting safety and reduce labor intensity, the proportion of on-site mixed explosives used in mine blasting has gradually increased, but the use of on-site mixed explosives in shaft and tunnel construction is still in its infancy. Summary of the invention

[0003] The purpose of the present invention is to solve the defects of the above-mentioned prior art and provide a portable emulsion explosive mixing system for shaft and lane construction. The system can solve the problem that large-scale mechanical charging cannot be used in small areas such as small tunnel and lane construction, replace manual charging and blasting, reduce labor intensity and improve blasting safety.

[0004] Another object of the present invention is to provide a method for mixing emulsion explosives.

[0005] The purpose of the present invention can be achieved by adopting the following technical solutions:

[0006] A portable emulsion explosive mixing system for shaft and tunnel construction comprises a shell, an equipment bin, a matrix bin, a sensitizer bin, a pneumatic pumping assembly and a static mixer. The equipment bin, the matrix bin and the sensitizer bin are arranged in the shell, the pneumatic pumping assembly and the static mixer are arranged in the equipment bin, the matrix bin and the sensitizer bin are connected to the feed port of the static mixer through the pneumatic pumping assembly, and the discharge port of the static mixer is used to connect a drug delivery pipe.

[0007] Furthermore, the pneumatic pumping assembly includes a pneumatic motor and a double plunger pump, the pneumatic motor is connected to the double plunger pump, the input end of the double plunger pump is respectively connected to the matrix silo and the sensitizer silo, and the output end of the double plunger pump is connected to the feed port of the static mixer.

[0008] Furthermore, the double plunger pump includes a first plunger pump and a second plunger pump, the first plunger pump is connected to the matrix silo through a matrix pipeline, and the second plunger pump is connected to the sensitizer silo through a sensitizer pipeline.

[0009] Furthermore, the air inlet of the pneumatic motor is connected to a compressed air pipe inside the mining area.

[0010] Furthermore, the air inlet of the pneumatic motor is connected to an air compressor.

[0011] Furthermore, the shell, equipment bin, matrix silo and sensitizer silo are all made of high-density polyethylene.

[0012] Furthermore, a pressure gauge and a pressure bursting disc are provided on the discharge port of the static mixer.

[0013] Furthermore, the length of the drug delivery tube is 8m-10m.

[0014] Another object of the present invention can be achieved by adopting the following technical solutions:

[0015] An emulsion explosive mixing method is implemented based on the above-mentioned portable emulsion explosive mixing system, and the method comprises:

[0016] Add latex matrix and sensitizer to the matrix silo and sensitizer silo respectively, connect the discharge port of the static mixer to the drug delivery tube, and insert the drug delivery tube into the blast hole. In the pneumatic pumping assembly, compressed air is used as the power to drive the double plunger pump through the pneumatic motor, so that the double plunger pump delivers the latex matrix and sensitizer to the static mixer respectively. After being mixed in the static mixer, they are delivered to the blast hole through the drug delivery tube to form explosives.

[0017] Furthermore, the double plunger pump adopts fixed volume ratio delivery.

[0018] The present invention has the following beneficial effects compared with the prior art:

[0019] 1. The present invention uses compressed air as a power source, and mixes the latex matrix and the sensitizer through a pneumatic pumping assembly and then delivers them to the blasthole. It has the characteristics of light weight, easy to carry, simple operation, good safety, and low space requirements.

[0020] 2. The present invention can use a latex matrix with a hazard level of Class 5.1 (oxidizer) to reduce the safety risk of using explosives (Class 1.1 explosives) in the traditional manual charging process.

[0021] 3. The present invention can disassemble the sensitizer silo and the static mixer, use bulk emulsion explosives for charging operations, and at the same time can add electronic control equipment, digital sensors and other components. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 The present invention is a structural diagram of a portable emulsion explosive mixing system for shaft and tunnel construction according to an embodiment of the present invention.

[0024] Figure 2 The present invention is a flowchart of a portable emulsion explosive mixing system for shaft and tunnel construction according to an embodiment of the present invention.

[0025] Among them, 1-shell, 2-equipment bin, 3-matrix silo, 31-matrix feeding port, 4-sensitizer silo, 41-sensitizer feeding port, 5-static mixer, 51-discharging port, 6-drug delivery pipe, 7-pneumatic motor, 71-air inlet, 8-double plunger pump, 9-matrix pipeline, 10-sensitizer pipeline, 11-pressure gauge, 12-pressure bursting disc. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] Example:

[0028] like Figure 1 As shown, this embodiment provides a portable emulsion explosive mixing system for shaft and tunnel construction, which includes a shell 1, an equipment bin 2, a matrix silo 3, a sensitizer silo 4, a pneumatic pumping assembly and a static mixer 5. The equipment bin 2, the matrix silo 3 and the sensitizer silo 4 are arranged in the shell 1, the pneumatic pumping assembly and the static mixer 5 are arranged in the equipment bin 2, the matrix silo 3 and the sensitizer silo 4 are connected to the feed port of the static mixer 5 through the pneumatic pumping assembly, and the discharge port 51 of the static mixer 5 is used to connect the drug delivery pipe 6, wherein the length of the drug delivery pipe 6 is 8m-10m.

[0029] Furthermore, the pneumatic pumping assembly of this embodiment includes an air motor 7 and a double plunger pump 8, the air motor 7 is connected to the double plunger pump 8, the input end of the double plunger pump 8 is respectively connected to the matrix silo 3 and the sensitizer silo 4, and the output end of the double plunger pump 8 is connected to the feed port of the static mixer 5.

[0030] Furthermore, the double plunger pump 8 of this embodiment includes a first plunger pump and a second plunger pump, the first plunger pump is a matrix pump, which is connected to the matrix silo 3 through a matrix pipeline 9, and the second plunger pump is a sensitizer pump, which is connected to the sensitizer silo 4 through a sensitizer pipeline 10. Compressed air is used as the power, and the double plunger pump 8 is driven by a pneumatic motor 7, so that the double plunger pump 8 respectively conveys the latex matrix and the sensitizer to the static mixer, wherein the double plunger pump 8 adopts a fixed volume ratio conveying.

[0031] Furthermore, the air inlet 71 of the pneumatic motor 7 can be connected to the compressed air pipe inside the mining area to facilitate user operation; those skilled in the art can understand that the air inlet 71 of the pneumatic motor 7 can also be connected to an air compressor provided by the user, specifically connected to the air pipe of the air compressor.

[0032] Furthermore, the air inlet 71 of the pneumatic motor 7 of the present embodiment may be provided with an air inlet controller, and charging can be achieved by opening the air inlet controller.

[0033] Furthermore, the housing 2, the equipment bin 2, the matrix bin 3 and the sensitizer bin 4 of the present embodiment are all made of high-density polyethylene, so that the entire system has a light weight effect.

[0034] Furthermore, the matrix silo 3 is provided with a corresponding matrix feeding port 31, through which the latex matrix can be added to the matrix feeding port 31, and the sensitizer silo 4 is provided with a corresponding sensitizer feeding port 41, through which the sensitizer can be added to the sensitizer silo 4.

[0035] In order to improve the safety of the system, a pressure gauge 11 and a pressure bursting disc 12 may be provided on the discharge port 51 of the static mixer 5 of the present embodiment. The pressure gauge 11 is used to monitor the discharge pressure of the drug in real time. When the discharge pressure of the drug is higher than a preset value, it is in an overpressure state, and the pressure bursting disc 12 bursts to release the pressure.

[0036] like Figure 2As shown, the working process of the portable emulsion explosive mixing system of this embodiment is: latex matrix and sensitizer are added to the matrix silo 3 and the sensitizer silo 4 respectively, the discharge port of the static mixer 5 is connected to the drug delivery tube 6, and the drug delivery tube 6 is inserted into the blast hole. In the pneumatic pumping assembly, compressed air is used as the power, and the double plunger pump 8 is driven by the pneumatic motor 7, so that the double plunger pump 8 delivers the latex matrix and the sensitizer to the static mixer 5 respectively. After being mixed in the static mixer 5, they are delivered to the blast hole by the drug delivery tube 6 to form explosives.

[0037] The method of using the portable emulsion explosive mixing system of this embodiment is as follows:

[0038] 1) Bring the portable emulsion explosive mixing system, packaged sensitizer, and packaged latex matrix to the work surface.

[0039] 2) Add latex matrix and sensitizer into matrix silo 3 and sensitizer silo 4 respectively.

[0040] 3) Connect the discharge port 51 of the static mixer 5 to the drug delivery tube 6 .

[0041] 4) Connect the air inlet 71 of the pneumatic motor 7 to the compressed air pipe.

[0042] 5) Insert the drug delivery tube 6 into the blast hole.

[0043] 6) Turn on the air intake controller and start loading.

[0044] 7) After loading begins, the tube is withdrawn while loading.

[0045] 8) Load the charge to the designated position, turn off the air intake controller and stop loading.

[0046] 9) Repeat steps 5) to 8) until the charging is completed or the material is empty (one of the matrix material bin 3 and the sensitizer material bin 4 is empty).

[0047] Those skilled in the art will appreciate that the portable emulsion explosive mixing system of this embodiment can disassemble the sensitizer silo and the static mixer, use bulk emulsion explosives for charging operations, and can also add electronic control equipment, digital sensors and other components.

[0048] In summary, the present invention uses compressed air as a power source, and mixes the latex matrix and the sensitizer through a pneumatic pumping assembly and then delivers the mixture to the blasthole. It has the characteristics of light weight, easy to carry, simple operation, good safety, and low space requirements. It can solve the problem that large-scale mechanical charging cannot be used in small areas such as small tunnel and laneway construction. At the same time, a latex matrix with a hazard level of Class 5.1 (oxidizer) can be used, reducing the safety risks of using explosives (Class 1.1 explosives) in the traditional manual charging process, replacing manual charging blasting, reducing labor intensity, and improving blasting safety.

[0049] The above is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and invention concept of the present invention within the scope disclosed by the present invention, which shall fall within the protection scope of the present invention.

Claims

1. A portable emulsion explosive mixing system for shaft and tunnel construction, characterized in that: The invention comprises a shell, an equipment bin, a matrix bin, a sensitizer bin, a pneumatic pumping assembly and a static mixer. The equipment bin, the matrix bin and the sensitizer bin are arranged in the shell, the pneumatic pumping assembly and the static mixer are arranged in the equipment bin, the matrix bin and the sensitizer bin are connected to the feed port of the static mixer through the pneumatic pumping assembly, and the discharge port of the static mixer is used to connect to a drug delivery tube.

2. The portable emulsion explosive mixing system according to claim 1, characterized in that: The pneumatic pumping assembly includes a pneumatic motor and a double plunger pump, the pneumatic motor is connected to the double plunger pump, the input end of the double plunger pump is respectively connected to the matrix silo and the sensitizer silo, and the output end of the double plunger pump is connected to the feed port of the static mixer.

3. The portable emulsion explosive mixing system according to claim 2, characterized in that: The double plunger pump comprises a first plunger pump and a second plunger pump, wherein the first plunger pump is connected to a substrate silo via a substrate pipeline, and the second plunger pump is connected to a sensitizer silo via a sensitizer pipeline.

4. The portable emulsion explosive mixing system according to claim 2, characterized in that: The air inlet of the pneumatic motor is connected to the compressed air pipe inside the mining area.

5. The portable emulsion explosive mixing system according to claim 2, characterized in that: The air inlet of the pneumatic motor is connected to the air compressor.

6. The portable emulsion explosive mixing system according to any one of claims 1 to 5, characterized in that: The shell, the equipment bin, the matrix bin and the sensitizer bin are all made of high-density polyethylene.

7. The portable emulsion explosive mixing system according to any one of claims 1 to 5, characterized in that: A pressure gauge and a pressure bursting disc are provided on the discharge port of the static mixer.

8. The portable emulsion explosive mixing system according to any one of claims 1 to 5, characterized in that: The length of the drug delivery tube is 8m-10m.

9. An emulsion explosive mixing method, implemented based on the portable emulsion explosive mixing system according to any one of claims 1 to 8, characterized in that: The method comprises: Add latex matrix and sensitizer to the matrix silo and sensitizer silo respectively, connect the discharge port of the static mixer to the drug delivery tube, and insert the drug delivery tube into the blast hole. In the pneumatic pumping assembly, compressed air is used as the power to drive the double plunger pump through the pneumatic motor, so that the double plunger pump delivers the latex matrix and sensitizer to the static mixer respectively. After being mixed in the static mixer, they are delivered to the blast hole through the drug delivery tube to form explosives.

10. The emulsion explosive mixing method according to claim 9, characterized in that: The double plunger pump adopts fixed volume ratio delivery.

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