Foaming agent stirring device for emulsion explosive production

Abstract

The utility model discloses a foaming agent stirring device for emulsion explosive production. Belongs to the technical field of emulsion explosive production. According to the technical key points, the device comprises a support and a stirring barrel placed on the support, a portal frame is arranged on the support, and the horizontal part of the portal frame is located above the stirring barrel; an electric stirring assembly matched with the stirring barrel is arranged on the portal frame, and a liquid pumping assembly used for conveying a foaming agent to the next working procedure is arranged on the portal frame; a cleaning drain pipe with a valve is arranged at the bottom of the stirring barrel; a water supply pipe connected with an external water source is arranged at the opening end of the stirring barrel; a filter screen frame for filtering foaming agent raw materials is detachably arranged at the opening end of the stirring barrel; the utility model aims to provide the foaming agent stirring device for emulsion explosive production, which is simple in structure and capable of automatically stirring; the foaming agent stirring device is used for stirring and preparing foaming agents for emulsion explosive production.

Description

Technical Field

[0001] This utility model relates to a stirring device, and more specifically, to a stirring device for a foaming agent used in the production of emulsion explosives. Background Technology

[0002] In the continuous production line of emulsion explosives, foaming agents are needed to form microbubbles in the emulsion explosive colloid. These microbubbles are used to generate hot spots and increase the density of the explosive. Therefore, foaming agents are one of the key components of emulsion explosives. Foaming agents are usually prepared by adding water and foaming agent raw materials in a certain proportion and order to a foaming agent preparation tank and stirring to dissolve them.

[0003] In current emulsion explosive production lines, the foaming agent required for production is usually prepared by manual mixing. This mixing method is greatly affected by the operator's skill level, and is prone to insufficient and uneven mixing. After mixing, the foaming agent is manually poured out, which requires a lot of labor and is inefficient. Furthermore, the raw materials of foaming agents commonly used in emulsion explosive production usually contain thiourea, urea, etc., which inevitably produce a small amount of irritating gases during the mixing process, causing certain harm to the health of workers. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of the prior art by providing a simple and automatic stirring device for foaming agents in the production of emulsion explosives.

[0005] The technical solution of this utility model is implemented as follows: A foaming agent stirring device for emulsion explosive production includes a support and a stirring tank placed on the support. A gantry is provided on the support, and the horizontal part of the gantry is located above the stirring tank. An electric stirring assembly that cooperates with the stirring tank is provided on the gantry, and a liquid extraction assembly for conveying the foaming agent to the next process is provided on the gantry. A cleaning drain pipe with a valve is provided at the bottom of the stirring tank, and a water supply pipe connected to an external water source is provided at the opening end of the stirring tank. A filter screen frame for filtering foaming agent raw materials is detachably provided at the opening end of the stirring tank.

[0006] In the above-mentioned foaming agent mixing device for emulsion explosive production, an opening and closing box cover is provided on the opening end of the mixing tank; the opening and closing box cover includes a first cover plate in the shape of a semicircle, and a first clearance notch that cooperates with the electric mixing assembly is provided at the center of the first cover plate; a second cover plate is provided on one side of the first cover plate, and a second clearance notch corresponding to the first clearance notch is provided on the second cover plate; a feeding port is provided on the side of the second cover plate away from the first cover plate, and an opening and closing cover plate adapted to the feeding port is hinged on the second cover plate.

[0007] In the above-mentioned foaming agent stirring device for emulsion explosive production, the first cover plate is provided with a first installation step at one end of the first clearance notch, and the second cover plate is provided with a second installation step that cooperates with the first installation step; at least two positioning rods are provided on the first installation step, and positioning holes corresponding to the positioning rods are provided on the second installation step.

[0008] In the above-mentioned foaming agent stirring device for emulsion explosive production, the filter frame includes an arc-shaped frame adapted to the feeding port, and a filter screen is provided on the arc-shaped frame.

[0009] The bottom of the second cover plate is symmetrically provided with two first hooks, the front end of the hooks is inclined outward, and there are hanging ears on the arc frame that correspond one-to-one with the first hooks; a second hook is provided on one end of the arc frame near the inner wall of the mixing tank, and a positioning notch that cooperates with the second hook is provided at the opening end of the mixing tank.

[0010] In the above-mentioned foaming agent stirring device for emulsion explosive production, the electric stirring assembly includes a rotating shaft arranged along the axis of the stirring tank, a gearbox connected to the rotating shaft on the gantry, a drive motor at the input end of the gearbox, and a U-shaped stirring head at the free end of the rotating shaft.

[0011] In the above-mentioned foaming agent stirring device for emulsion explosive production, the U-shaped stirring head includes a horizontal plate disposed at the free end of the rotating shaft, and vertical blades are provided at both ends of the horizontal plate. The angle α between the projection of the vertical blades on the horizontal plate and the length direction of the horizontal plate is 50-80°.

[0012] With the above-described structure, this invention allows water and foaming agent raw materials to be added to a mixing tank in a specific ratio and stirred by an electric stirring assembly. After stirring, the foaming agent is transported to the next process via a pumping assembly. Stirring by an electric stirring assembly is faster and more uniform than manual stirring, ensuring thorough dissolution of the foaming agent raw materials, effectively improving the efficiency of foaming agent preparation and reducing worker workload. Furthermore, workers do not need to remain near the mixing tank during stirring, reducing the inhalation of gases generated during the foaming agent reaction. Attached Figure Description

[0013] The present invention will be further described in detail below with reference to the embodiments shown in the accompanying drawings, but this does not constitute any limitation on the present invention.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 3This is a schematic diagram of the structure of the first cover plate of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the second cover plate of this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the filter frame of this utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the mixing tank of this utility model;

[0020] Figure 7 This is a schematic diagram of the structure of the U-shaped stirring head of this utility model.

[0021] In the diagram: 1. Support; 2. Mixing tank; 3. Gantry; 4. Electric mixing assembly; 4a. Rotating shaft; 4b. Gearbox; 4c. Drive motor; 5. Liquid extraction assembly; 6. Cleaning drain pipe; 7. Water supply pipe; 8. Filter screen frame; 8a. Arc-shaped frame; 8b. Filter screen; 8c. First hook; 8d. Hanging ear; 8e. Second hook; 8f. Positioning notch; 9. Opening and closing lid; 9a. First cover plate; 9b. First clearance notch; 9c. Second cover plate; 9d. Second clearance notch; 9e. Feed port; 9f. Opening and closing lid; 9g. First mounting step; 9h. Second mounting step; 9i. Positioning rod; 9j. Positioning hole; 10. U-shaped mixing head; 10a. Horizontal plate; 10b. Vertical blade. Detailed Implementation

[0022] See Figure 1-7 As shown, this utility model discloses a foaming agent mixing device for emulsion explosive production, comprising a support 1 and a mixing tank 2 placed on the support 1. A gantry 3 is mounted on the support 1, with its horizontal portion positioned above the mixing tank 2. An electric stirring assembly 4, cooperating with the mixing tank 2, is mounted on the gantry 3, as is a liquid extraction assembly 5 for conveying the foaming agent to the next process. The liquid extraction assembly consists of a self-priming pump and a pipe extending into the bottom of the mixing tank; its specific structure and connection method are existing technologies and will not be described further. A cleaning drain pipe 6 with a valve is located at the bottom of the mixing tank 2, and a water supply pipe 7 connected to an external water source is located at the opening end of the mixing tank 2. After clean water is introduced through the water supply pipe, the foaming agent raw material is poured into the mixing tank in proportion, and stirred by the electric stirring assembly. After stirring, the foaming agent is conveyed to the next process by the liquid extraction assembly. After use, clean water is introduced through the water supply pipe to clean the mixing tank, and the wastewater after cleaning is discharged through the cleaning drain pipe.

[0023] Electric stirring is faster and more uniform than manual stirring, ensuring thorough dissolution of the foaming agent raw materials. This significantly improves the efficiency of foaming agent preparation and reduces worker workload. Furthermore, workers do not need to remain near the stirring tank during stirring, minimizing the inhalation of gases generated during the foaming agent reaction.

[0024] A filter screen frame 8 is detachably installed at the opening end of the mixing tank 2 for filtering the foaming agent raw material. The filter screen frame is installed to filter out large, insoluble impurities that may be mixed in with the foaming agent raw material, preventing them from entering the mixing tank and damaging the electric stirring assembly and the liquid pumping assembly.

[0025] In this embodiment, a hinged cover 9 is provided on the open end of the mixing tank 2. The hinged cover 9 includes a semi-circular first cover plate 9a, with a first clearance notch 9b at the center of the first cover plate 9a that cooperates with the electric stirring assembly 4. A second cover plate 9c is provided on one side of the first cover plate 9a, with a second clearance notch 9d corresponding to the first clearance notch 9b on the second cover plate 9c. A feeding port 9e is provided on the side of the second cover plate 9c away from the first cover plate 9a, and a hinged cover plate 9f adapted to the feeding port 9e is hinged to the second cover plate 9c. By providing the hinged cover to cover the open end of the mixing tank, the irritating gases generated during the stirring process are reduced from entering the outside air.

[0026] Meanwhile, the structure of the first cover plate and the second cover plate makes it easy to open and close the cover plate and install it with the electric stirring assembly, and the electric stirring assembly can be used without interference when the cover plate needs to be removed.

[0027] More preferably, the first cover plate 9a has a first mounting step 9g at one end of the first clearance notch 9b, and the second cover plate 9c has a second mounting step 9h that mates with the first mounting step 9g; the first mounting step 9g has at least two positioning rods 9i, and the second mounting step 9h has positioning holes 9j corresponding to the positioning rods 9i. This structure facilitates the positioning of the first and second cover plates and reduces the gap between them, thus reducing gas leakage.

[0028] In this embodiment, preferably, the filter frame 8 includes an arc-shaped frame 8a adapted to the feed port 9e, and a filter 8b is provided on the arc-shaped frame 8a.

[0029] The second cover plate 9c has two symmetrical first hooks 8c at its bottom. The front ends of the first hooks 8c are inclined outwards. A corresponding hanging ear 8d is provided on the arc-shaped frame 8a. A second hook 8e is provided on the end of the arc-shaped frame 8a near the inner wall of the mixing tank 2. A positioning notch 8f that mates with the second hook 8e is provided at the opening end of the mixing tank 2. The first hook includes a horizontal section and a limiting section with an inclined front end. The gap between the hanging ears is adapted to the length of the horizontal section. When the hanging ear is fixed by the first hook, the hanging ear engages with the limiting section and can move along the horizontal section. When the filter frame needs to be removed, the filter frame is pushed towards the first hook, and then the second hook is lifted to tilt and remove the filter frame, avoiding interference with the inner wall of the mixing tank or the opening and closing of the lid, thus facilitating the installation and removal of the filter frame.

[0030] In this embodiment, preferably, the electric stirring assembly 4 includes a rotating shaft 4a arranged along the axis of the stirring tank 2, a gearbox 4b connected to the rotating shaft 4a on the gantry 3, and a drive motor 4c at the input end of the gearbox 4b; a U-shaped stirring head 10 is provided at the free end of the rotating shaft 4a. Connecting the rotating shaft with the gearbox prevents the resistance experienced by the U-shaped stirring head during stirring from being transmitted to the output shaft of the drive motor and causing damage to the drive motor.

[0031] More preferably, the U-shaped stirring head 10 includes a horizontal plate 10a disposed at the free end of the rotating shaft 4a, and vertical blades 10b disposed at both ends of the horizontal plate 10a. The angle α between the projection of the vertical blade 10b onto the horizontal plate 10a and the length direction of the horizontal plate 10a is 50-80°. With this structure, the vertical blades can effectively propel the liquid forward during rotation without experiencing excessive resistance, reducing the resistance to the gearbox and drive motor, reducing wear, and increasing service life.

[0032] During operation, clean water is supplied to the mixing tank via the water supply pipe. The drive motor is started to rotate the U-shaped stirring head. The cover is opened, and the foaming agent raw materials are poured into the mixing tank in the correct proportions and order for mixing. After mixing is complete, the drive motor is turned off, and the foaming agent is transported to the next process via the liquid extraction component. After use, clean water is supplied via the water supply pipe, and the drive motor is started to rotate the U-shaped stirring head to clean the mixing tank. After cleaning, the valve is opened, and the wastewater is discharged through the cleaning drain pipe.

[0033] The above-described embodiments are preferred embodiments of the present utility model and are only used to facilitate the illustration of the present utility model. They are not intended to limit the present utility model in any way. Any person skilled in the art who makes partial modifications or alterations to the technical content disclosed in the present utility model without departing from the scope of the technical features of the present utility model shall still fall within the scope of the technical features of the present utility model.

Claims

1. A foaming agent mixing device for emulsion explosive production, comprising a support (1) and a mixing tank (2) placed on the support (1), characterized in that, The support (1) is provided with a gantry (3), the horizontal part of which is located above the mixing tank (2); an electric stirring assembly (4) that cooperates with the mixing tank (2) is provided on the gantry (3), and a liquid extraction assembly (5) for conveying the foaming agent to the next process is provided on the gantry (3); a cleaning drain pipe (6) with a valve is provided at the bottom of the mixing tank (2), and a water supply pipe (7) connected to an external water source is provided at the opening end of the mixing tank (2); a filter screen frame (8) for filtering the foaming agent raw material is detachably provided at the opening end of the mixing tank (2). The mixing tank (2) is provided with an opening and closing cover (9); the opening and closing cover (9) includes a first cover plate (9a) in the shape of a semicircle, and a first clearance notch (9b) that cooperates with the electric stirring assembly (4) is provided at the center of the first cover plate (9a); a second cover plate (9c) is provided on one side of the first cover plate (9a), and a second clearance notch (9d) corresponding to the first clearance notch (9b) is provided on the second cover plate (9c); a feeding port (9e) is provided on the side of the second cover plate (9c) away from the first cover plate (9a), and an opening and closing cover plate (9f) that is adapted to the feeding port (9e) is hinged on the second cover plate (9c).

2. The foaming agent stirring device for emulsion explosive production according to claim 1, characterized in that, The first cover plate (9a) is provided with a first mounting step (9g) at one end of the first clearance notch (9b), and the second cover plate (9c) is provided with a second mounting step (9h) that cooperates with the first mounting step (9g); at least two positioning rods (9i) are provided on the first mounting step (9g), and positioning holes (9j) corresponding to the positioning rods (9i) are provided on the second mounting step (9h).

3. The foaming agent stirring device for emulsion explosive production according to claim 1, characterized in that, The filter frame (8) includes an arc-shaped frame (8a) adapted to the feed port (9e), and a filter (8b) is provided on the arc-shaped frame (8a). The bottom of the second cover plate (9c) is symmetrically provided with two first hooks (8c). The front end of the first hook (8c) is inclined outward. The arc frame (8a) is provided with a hanging ear (8d) that corresponds to the first hook (8c). The arc frame (8a) is provided with a second hook (8e) at one end near the inner wall of the mixing tank (2). The opening end of the mixing tank (2) is provided with a positioning notch (8f) that cooperates with the second hook (8e).

4. The foaming agent stirring device for emulsion explosive production according to claim 1, characterized in that, The electric stirring assembly (4) includes a rotating shaft (4a) arranged along the axis of the stirring tank (2), a gearbox (4b) connected to the rotating shaft (4a) on the gantry (3), and a drive motor (4c) at the input end of the gearbox (4b); and a U-shaped stirring head (10) at the free end of the rotating shaft (4a).

5. The foaming agent stirring device for emulsion explosive production according to claim 4, characterized in that, The U-shaped stirring head (10) includes a horizontal plate (10a) disposed at the free end of the rotating shaft (4a), and vertical blades (10b) are provided at both ends of the horizontal plate (10a). The angle α between the projection of the vertical blade (10b) on the horizontal plate (10a) and the length direction of the horizontal plate (10a) is 50-80°.

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