Static mixer for emulsion explosive charging car

By using a mixing plate, rib, and mixing rod structure made of wear-resistant stainless steel, the problem of severe wear and poor mixing effect of the static mixer in the charging vehicle was solved, achieving more efficient mixing of emulsion explosives and sensitizers, extending equipment life and reducing costs.

CN224404971UActive Publication Date: 2026-06-26BAIYIN BANGBO ENG BLASTING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BAIYIN BANGBO ENG BLASTING CO LTD
Filing Date
2025-07-29
Publication Date
2026-06-26

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    Figure CN224404971U_ABST
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Abstract

The utility model relates to an emulsion explosive charging trolley static mixer, including the main pipeline, first mixing chamber and second mixing chamber that connect in proper order, the inside of main pipeline is sequentially provided with the first mixing chamber and second mixing chamber that intercommunicate from entrance end to export end, the input and output of first mixing chamber and second mixing chamber are all horn shape, the inside of first mixing chamber is fixed with the mixing board, and the mixing board is the shape of spiral around first mixing chamber axis direction, the inside of mixing board is provided with a plurality of ribbed plates, the inside of second mixing chamber is provided with a plurality of mixing rods by the inner wall direction to second mixing chamber axis, and the first branch pipeline that is linked with first mixing chamber and the second branch pipeline that is linked with second mixing chamber are arranged on the main pipeline, and the utility model discloses through setting first mixing chamber and second mixing chamber and corresponding mixing board, ribbed plate and mixing rod, make emulsion explosive and sensitizer can carry out more sufficient mixing, and improved mixing effect.
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Description

Technical Field

[0001] This utility model relates to the field of static mixer technology, specifically a static mixer for an emulsion explosive loading vehicle. Background Technology

[0002] A charging car is a self-propelled device used to load explosives into blast holes in mines. Charging cars used in underground metal mines come in two types: those with a single explosive loading function and those capable of loading mixed explosives. Based on the type of explosives loaded, there are cars that can load powdered explosives, granular explosives, emulsion explosives, and mixed explosives such as heavy ammonium phosphate explosives.

[0003] Currently, the static mixers used in delivery vehicles are made of nylon, which suffer severe wear during the loading process, resulting in high costs and poor mixing performance. By changing the structure, we can reduce or avoid wear on the static mixers during loading and control costs. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a static mixer for an emulsion explosive loading vehicle, addressing the above-mentioned shortcomings.

[0005] To solve the above technical problems, the present invention adopts the following technical solution:

[0006] A static mixer for an emulsion explosive loading vehicle includes a main pipe, a first mixing chamber, and a second mixing chamber connected in sequence. The main pipe is used to transport emulsion explosive. The first and second mixing chambers are sequentially arranged from the inlet to the outlet on the inner side of the main pipe. The input and output ends of the first and second mixing chambers are both funnel-shaped. A mixing plate is fixed inside the first mixing chamber. The mixing plate is spirally shaped around the axis of the first mixing chamber. Multiple ribs are arranged on the inner side of the mixing plate. Multiple mixing rods are arranged on the inner side of the second mixing chamber from the inner wall to the axis of the second mixing chamber. A first branch pipe connected to the first mixing chamber and a second branch pipe connected to the second mixing chamber are provided on the main pipe. The first and second branch pipes are used to introduce sensitizers. The input ends of the first and second branch pipes are both connected to the sensitizer storage tank of the loading vehicle.

[0007] Furthermore, the ribs are arranged at an angle.

[0008] Furthermore, the multiple mixing rods are distributed in a random order, and the mixing rods are in a horizontal / vertical / tilted state.

[0009] Furthermore, the diameter of the first pipe is twice the diameter of the second pipe.

[0010] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:

[0011] This invention, by setting up a first and second mixing chamber, along with corresponding mixing plates, ribs, and mixing rods, enables more thorough mixing of the emulsion explosive and the sensitizer, thus improving the mixing effect. The mixing plate is a spiral, allowing the emulsion explosive and sensitizer to tumble and flow along the spiral mixing plate. The ribs are inclined and their direction is opposite to the spiral flow direction of the mixing plate, further promoting mixing. The mixing rods are randomly distributed in the second mixing chamber to fully mix the emulsion explosive and sensitizer after the initial mixing in the first mixing chamber. By setting up a first pipe and a second pipe connected to the first and second mixing chambers respectively, with the diameter of the first pipe being twice that of the second pipe, the delivery of the sensitizer can be more rationally distributed, contributing to improved mixing efficiency and quality. The mixing plate, ribs, and mixing rods are all made of wear-resistant stainless steel, which resists corrosion of the emulsion explosive, further extending the service life of the static mixer.

[0012] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of the internal structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the cross-section of the first cavity;

[0015] Figure 3 This is a schematic diagram of the cross-section of the second cavity;

[0016] Figure 4 This is a schematic diagram of the three-dimensional structure of the hybrid plate.

[0017] The attached diagram lists the components represented by each number as follows:

[0018] 1. Main pipe; 2. First branch pipe; 3. Second branch pipe; 4. First mixing chamber; 5. Second mixing chamber; 6. Mixing plate; 7. Mixing rod; 8. Rib plate. Detailed Implementation

[0019] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0020] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] like Figure 1-4 As shown, a static mixer for an emulsion explosive loading vehicle includes a main pipe 1, a first mixing chamber 4, and a second mixing chamber 5 connected in sequence. The main pipe 1 is used to transport emulsion explosive. The first mixing chamber 4 and the second mixing chamber 5 are sequentially arranged from the inlet end to the outlet end on the inner side of the main pipe 1. The input and output ends of the first mixing chamber 4 and the second mixing chamber 5 are both funnel-shaped. A mixing plate 6 is fixed inside the first mixing chamber 4. The mixing plate 6 is spirally shaped around the axis of the first mixing chamber 4. Multiple ribs 8 are arranged on the inner side of the mixing plate 6. Multiple mixing rods 7 are arranged from the inner wall to the axis of the second mixing chamber 5 on the inner side of the second mixing chamber 5. A first branch pipe 2 connected to the first mixing chamber 4 and a second branch pipe 3 connected to the second mixing chamber 5 are arranged on the main pipe 1. The first branch pipe 2 and the second branch pipe 3 are used to introduce sensitizer. The input ends of the first branch pipe 2 and the second branch pipe 3 are both connected to the sensitizer storage tank of the loading vehicle.

[0022] In one embodiment, the rib plate 8 is arranged at an angle.

[0023] In one implementation, the plurality of mixing rods 7 are distributed in a random order, and the mixing rods 7 are in a horizontal / vertical / tilted state.

[0024] In one implementation, the diameter of the first branch pipe 2 is twice the diameter of the second branch pipe 3.

[0025] In this invention, the rib inclination angle can be different from the inclination angle of the spiral surface of the mixing plate.

[0026] The working process of this utility model is as follows: Emulsion explosive is introduced into the static mixer through the main pipe 1 from the inlet end. Under the action of external force, the emulsion explosive first enters the first mixing chamber 4. Simultaneously, the sensitizer is transported to the first mixing chamber 4 through the first branch pipe 2, connected to the sensitizer storage tank of the charging vehicle. Inside the first mixing chamber 4, the emulsion explosive and sensitizer flow along the spiral mixing plate 6. The ribs 8 on the mixing plate 6 further promote the tumbling and mixing of the emulsion explosive and sensitizer, achieving preliminary mixing. The pre-mixed emulsion explosive and sensitizer enter the second mixing chamber 5. Simultaneously, the sensitizer continues to be transported to the second mixing chamber 5 through the second branch pipe 3. Inside the second mixing chamber 5, multiple randomly distributed mixing rods 7 further stir and mix the mixture, ensuring thorough mixing of the emulsion explosive and sensitizer. The thoroughly mixed emulsion explosive and sensitizer mixture is output from the outlet end of the main pipe 1 for subsequent charging operations.

[0027] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A static mixer for an emulsion explosive charging vehicle, characterized in that, The system includes a main pipe (1), a first mixing chamber (4), and a second mixing chamber (5) connected in sequence. The main pipe (1) is used to transport emulsion explosives. The first mixing chamber (4) and the second mixing chamber (5) are sequentially arranged inside the main pipe (1) from the inlet end to the outlet end. The inlet and outlet ends of the first mixing chamber (4) and the second mixing chamber (5) are both funnel-shaped. A mixing plate (6) is fixed inside the first mixing chamber (4). The mixing plate (6) is spirally shaped around the axis of the first mixing chamber (4). Multiple ribs (8) are provided on the inner side of the composite plate (6). Multiple mixing rods (7) are provided on the inner side of the second mixing chamber (5) from the inner wall to the axis of the second mixing chamber (5). A first branch pipe (2) connected to the first mixing chamber (4) and a second branch pipe (3) connected to the second mixing chamber (5) are provided on the main pipe (1). The first branch pipe (2) and the second branch pipe (3) are used to introduce sensitizer. The input ends of the first branch pipe (2) and the second branch pipe (3) are connected to the sensitizer storage tank of the loading vehicle.

2. The static mixer for an emulsion explosive charging vehicle according to claim 1, characterized in that, The rib (8) is inclined.

3. The static mixer for an emulsion explosive charging vehicle according to claim 1, characterized in that, The multiple mixing rods (7) are distributed in a random order, and the mixing rods (7) are in a horizontal / vertical / tilted state.

4. The static mixer for an emulsion explosive charging vehicle according to claim 1, characterized in that, The diameter of the first branch pipe (2) is twice the diameter of the second branch pipe (3).