Efficient mixing and conveying device for ammonium nitrate fuel oil explosives

Abstract

The utility model discloses an efficient ammonium nitrate fuel oil explosive mixing and conveying device which comprises a spiral feeder, a shell box, an atomizing assembly and a stirring assembly, the spiral feeder is arranged on a material fixing box, a hopper, an annular belt and a power assembly are arranged in the shell box, and the hopper is used for collecting granular ammonium nitrate materials conveyed by the spiral feeder and discharging the granular ammonium nitrate materials to the upper side of the annular belt; the annular belt is provided with two sets of side plates, the power assembly is used for driving the annular belt to operate, the atomization assembly comprises an upper scraper blade and a first spraying pipe which are arranged in the shell box, the upper scraper blade is used for scraping granular ammonium nitrate materials to form a material belt with the consistent thickness, and the first spraying pipe is used for atomizing diesel oil to the upper side of the material belt. The stirring assembly comprises a first rotating source installed on the shell box, the output end of the first rotating source is connected with a lining rod extending into an inner cavity of the shell box, and a plurality of blades are arranged on the lining rod; the equal amount of granular ammonium nitrate materials can be conveyed in real time to be mixed with diesel oil, uniformity is good, follow-up stirring time is effectively shortened, and efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of explosive mixing, in particular to an ammonium nitrate oil explosive high-efficiency mixing and conveying device. Background Art

[0002] Industrial explosives are one of the basic energy sources indispensable for the development of modern industry. Ammonium oil-fuel explosive, as a kind of industrial explosive, is widely used in my country. Ammonium oil-fuel explosive is made by mixing granular ammonium nitrate with diesel and other additives in a certain proportion and is suitable for open-pit mine blasting projects.

[0003] The storage stability of ammonium oil-fuel mixture is relatively poor, and it is suitable for immediate mixing and use. Therefore, the production method of mixing on site and then loading into the blasthole is preferred. When loading, granular ammonium nitrate and diesel are added in proportion and then mixed. Due to the uneven adsorption of diesel by granular ammonium nitrate, the subsequent mixing time required is long. Therefore, the utility model proposes an efficient mixing and conveying device for ammonium oil-fuel mixture to reduce the subsequent mixing time and improve efficiency. Utility Model Content

[0004] The utility model aims to provide an efficient mixing and conveying device for ammonium nitrate explosive to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: an ammonium oil-fuel mixture high-efficiency conveying device, comprising:

[0006] A screw feeder is arranged on the solid material box;

[0007] The shell box is provided with a hopper, an endless belt and a power assembly inside. The hopper is used to collect the granular ammonium nitrate material conveyed by the screw feeder and discharge it to the upper side of the endless belt. Two sets of side plates are provided on the endless belt. The power assembly is used to drive the endless belt to operate;

[0008] an atomizing assembly, comprising an upper scraper and a first spray pipe disposed in the shell box, wherein the upper scraper is used to scrape the granular ammonium nitrate material to form a material strip with uniform thickness, and the first spray pipe is used to atomize diesel to the upper side of the material strip;

[0009] The stirring assembly comprises a first rotating source installed on a shell box, an output end of the first rotating source is connected to a lining rod extending to the inner cavity of the shell box, and a plurality of blades are arranged on the lining rod.

[0010] As a preferred technical solution, a vibration source is installed on the outer wall of the hopper.

[0011] As a preferred technical solution, the power assembly includes two groups of rollers and a second power source, the endless belt is sleeved on the two groups of rollers, and the second power source is drivingly connected to one group of rollers.

[0012] As a preferred technical solution, the atomization assembly also includes a lower scraper and a second spray pipe arranged in the shell box, the lower scraper is in contact with the lower side of the annular belt, and the second spray pipe is located below the annular belt and is used to atomize diesel to the lower side of the material belt.

[0013] As a preferred technical solution, a plurality of spray heads are respectively provided on the first spray pipe and the second spray pipe.

[0014] As a preferred technical solution, a discharge pipe is provided at the bottom of the shell box, and a cover body is screwed onto the discharge pipe.

[0015] As a preferred technical solution, a plug is provided on the cover body, and the plug extends upward along the discharge pipe, and the upper end surface of the plug is flush with the inner bottom wall of the shell box.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] Real-time delivery of equal amounts of granular ammonium nitrate material and diesel mixes evenly, effectively reducing subsequent stirring time and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the shell box of the utility model;

[0020] Figure 3 This is a schematic diagram of the position relationship between the hopper and the endless belt of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the power assembly of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the stirring assembly of the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the atomization component of the utility model;

[0024] In the figure: 10, solid material box; 20, screw feeder; 30, shell box; 31, discharge pipe; 32, cover body; 40, hopper; 41, vibration source; 50, endless belt; 51, side plate; 60, atomization assembly; 61, upper scraper; 62, first spray pipe; 63, lower scraper; 64, second spray pipe; 65, nozzle; 70, stirring assembly; 71, first rotation source; 72, lining rod; 73, blade; 80, power assembly; 81, roller body; 82, second power source. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-6 , provide an ammonium oil explosive efficient mixing and conveying device to solve the problem that diesel and granular ammonium nitrate are mixed unevenly, resulting in a long time for subsequent mixing and low efficiency. The specific embodiments are as follows:

[0027] Embodiment 1

[0028] The screw feeder 20 is disposed on the solid material box 10 .

[0029] The granular ammonium nitrate material is stored in the solid material box 10 , and when the vehicle moves to the blasting site, the granular ammonium nitrate material is discharged through the screw feeder 20 .

[0030] A hopper 40 and an endless belt 50 are provided inside the shell box 30 . The hopper 40 is used to collect the granular ammonium nitrate material conveyed by the screw feeder 20 and discharge it to the upper side of the endless belt 50 . Two sets of side plates 51 are provided on the endless belt 50 .

[0031] The side plate 51 blocks the transported granular ammonium nitrate material and prevents it from falling off the endless belt 50 .

[0032] A power assembly 80 is disposed inside the housing 30 , and the power assembly 80 is used to drive the endless belt 50 to operate.

[0033] The power assembly 80 includes two groups of rollers 81 and a second power source 82. The endless belt 50 is sleeved on the two groups of rollers 81. The second power source 82 is drivingly connected to a group of rollers 81. The second power source 82 is preferably a motor. By driving a group of rollers 81 to rotate through the second power source 82, the endless belt 50 can be driven to continuously operate and horizontally transport the granular ammonium nitrate material.

[0034] The atomizing assembly 60 includes an upper scraper 61 and a first spray pipe 62 disposed in the shell box 30. The upper scraper 61 is used to scrape the granular ammonium nitrate material to form a material strip with uniform thickness, and the first spray pipe 62 is used to atomize diesel to the upper side of the material strip.

[0035] A scraping gap is formed between the upper scraper 61 and the upper side of the endless belt 50. When the endless belt 50 is running, the granular ammonium nitrate material is scraped by the upper scraper 61 to form a material belt with uniform thickness on the endless belt 50. The width of the material belt is the distance between the two sets of side plates 51. The first spray pipe 62 atomizes the diesel to cover the upper side of the material belt, so that the granular ammonium nitrate and the diesel are mixed with good uniformity, which effectively reduces the subsequent stirring time and improves efficiency.

[0036] The stirring assembly 70 includes a first rotation source 71 installed on the shell box 30 . The output end of the first rotation source 71 is connected to a lining rod 72 extending to the inner cavity of the shell box 30 . A plurality of blades 73 are provided on the lining rod 72 .

[0037] The first rotation source 71 is preferably a motor body, which drives the liner rod 72 to rotate, thereby driving the multiple blades 73 to stir and mix the granular ammonium nitrate and diesel.

[0038] Embodiment 2

[0039] A vibration source 41 is installed on the outer wall of the hopper 40 .

[0040] The vibration source 41 is preferably a vibration motor, which can vibrate the hopper 40 to ensure smooth discharge of the granular ammonium nitrate material.

[0041] The atomization assembly 60 also includes a lower scraper 63 and a second spray pipe 64 arranged in the shell box 30. The lower scraper 63 is in contact with the lower side of the annular belt 50. The second spray pipe 64 is located below the annular belt 50 and is used to atomize the diesel to the lower side of the material belt. A plurality of nozzles 65 are respectively arranged on the first spray pipe 62 and the second spray pipe 64. The first spray pipe 62 and the second connecting spray pipe are connected to a diesel delivery pump through a pipeline.

[0042] The material belt receives atomized diesel and falls from the discharge end of the endless belt 50. The lower scraper 63 is used to scrape off the granular ammonium nitrate material adhering to the endless belt 50 to prevent it from being brought to the upper side again. The falling material belt is atomized through the second spray pipe 64, so that the diesel is sprayed on the lower side of the material belt, thereby achieving double-sided mixing of the material belt and further improving the uniformity.

[0043] A discharge pipe 31 is provided at the bottom of the shell box 30 , a cover body 32 is screwed on the discharge pipe 31 , a plug is provided on the cover body 32 , and the plug extends upward along the discharge pipe 31 , and the upper end surface of the plug is flush with the inner bottom wall of the shell box 30 .

[0044] The granular ammonium nitrate material after double-sided atomization and mixing falls to the bottom of the shell box 30. During the stirring and mixing process, the plug column can prevent the granular ammonium nitrate material from entering the discharge pipe 31. When discharging, the cover body 32 can be unscrewed from the discharge pipe 31, and the mixed ammonium nitrate oil explosive can be discharged by rotating multiple blades 73.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ammonium oil-fuel mixture efficient mixing and conveying device, characterized in that, include: A screw feeder (20) is arranged on the solid material box (10); A shell box (30) is provided with a hopper (40), an endless belt (50) and a power assembly (80) inside, wherein the hopper (40) is used to collect the granular ammonium nitrate material conveyed by the screw feeder (20) and discharge it to the upper side of the endless belt (50), the endless belt (50) is provided with two sets of side plates (51), and the power assembly (80) is used to drive the endless belt (50) to operate; An atomizing assembly (60) comprises an upper scraper (61) and a first spray pipe (62) arranged in the shell box (30), wherein the upper scraper (61) is used to scrape the granular ammonium nitrate material to form a material strip with uniform thickness, and the first spray pipe (62) is used to atomize diesel to the upper side of the material strip; The stirring assembly (70) comprises a first rotating source (71) mounted on a shell box (30), wherein the output end of the first rotating source (71) is connected to a lining rod (72) extending into the inner cavity of the shell box (30), and a plurality of blades (73) are arranged on the lining rod (72).

2. a kind of ammonium oil-fuel mixture efficient mixing and conveying device according to claim 1, is characterized in that, A vibration source (41) is installed on the outer wall of the hopper (40).

3. a kind of ammonium oil-fuel mixture efficient mixing and conveying device according to claim 1, is characterized in that, The power assembly (80) comprises two groups of roller bodies (81) and a second power source (82). The endless belt (50) is sleeved on the two groups of roller bodies (81), and the second power source (82) is drivingly connected to one group of roller bodies (81).

4. a kind of ammonium oil-fuel mixture efficient mixing and conveying device according to claim 1, is characterized in that, The atomizing assembly (60) further comprises a lower scraper (63) and a second spray pipe (64) arranged in the shell box (30), wherein the lower scraper (63) contacts the lower side of the annular belt (50), and the second spray pipe (64) is located below the annular belt (50) and is used to atomize diesel to the lower side of the material belt.

5. a kind of ammonium oil-fuel mixture efficient mixing and conveying device according to claim 4, is characterized in that, A plurality of spray heads (65) are respectively arranged on the first spray pipe (62) and the second spray pipe (64).

6. a kind of ammonium oil-fuel mixture efficient mixing and conveying device according to claim 1, is characterized in that, A discharge pipe (31) is provided at the bottom of the shell box (30), and a cover body (32) is screwed onto the discharge pipe (31).

7. a kind of ammonium oil-fuel mixture efficient mixing and conveying device according to claim 6 is characterized in that, The cover body (32) is provided with a plug, which extends upward along the discharge pipe (31), and the upper end surface of the plug is flush with the inner bottom wall of the shell box (30).

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