Static emulsification integrated device for M-type emulsion explosive

Abstract

The utility model discloses a static emulsification integrated device for M-type emulsion explosives. The static emulsification integrated device is formed by connecting and combining a water phase tank (12), an oil phase tank (13), a water phase delivery pump (14), an oil phase delivery pump (15), two mass flowmeters (16), a venturi tube (17) and a multi-stage jet flow static emulsifier (G), the multi-stage jet flow static emulsifier (G) is formed by combining an SK type static mixing pipe (1), an SK type static mixing unit (2), a first jet flow perforated plate (3), a jet flow emulsifying pipe (4), a forward spiral blade (5), a second jet flow perforated plate (6), a diaphragm type pressure gauge (7), a reverse spiral blade (8), an SV type uniform emulsion mixing pipe (9), an SV type uniform emulsion mixing unit (10) and a pressure relief pipe (11). The device disclosed by the utility model integrates SK type static mixing, multi-stage jet emulsification and SV type uniform emulsion mixing, and has the characteristics of good emulsification effect, high productivity, stable product quality, constant working pressure, high production line safety and excellent product performance index.

Description

Technical Field

[0001] The utility model belongs to the technical field of emulsion explosive production, and in particular relates to a static emulsification device for emulsion explosive. Background Art

[0002] In the field of industrial explosives, emulsion explosives have low production costs, strong explosive power, long storage time, and are widely used in various blasting operations. The production process of emulsion explosives includes the preparation of water-oil phase materials, pumping, metering, emulsification, sensitization, charging and packaging, among which emulsification technology is the key to the production of emulsion explosives. The various performance indicators of emulsion explosives, such as detonation speed, explosive power, storage period, and waterproof performance, are all related to the emulsification effect and are the direct factors that determine the quality of emulsion explosive products.

[0003] At present, the emulsification processes of my country's emulsified explosive production line are emulsification process of emulsifier, pre-emulsification plus static emulsification process and pipeline static emulsification process. The pre-emulsification plus static emulsification process has an additional pre-emulsification process and a pumping process. The pipeline static emulsification capacity is low and the product quality is unstable. The production process of M-type emulsified explosive is the emulsification process of emulsifier. The emulsification equipment has a high speed and a small clearance between the moving rotor. It belongs to Class 0 production equipment and has safety hazards. Summary of the invention

[0004] The purpose of the utility model is to provide a static emulsification integrated device for M-type emulsion explosives with good emulsification effect, high production capacity and good product quality stability, in response to the above-mentioned problems existing in the production process of the existing emulsion explosive production line, in close combination with the characteristics of high production process temperature and large production capacity of the M-type emulsion explosive production line.

[0005] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical scheme for a static emulsification integrated device of an M-type emulsion explosive:

[0006] The utility model discloses a static emulsification integrated device for M-type emulsion explosive, which is composed of a water phase tank, an oil phase tank, a water phase delivery pump, an oil phase delivery pump, two mass flow meters, a venturi tube, and a multi-stage jet static emulsifier connected in combination; the water phase tank is a storage device for water phase materials, and the prepared water phase materials are stored in the water phase tank and kept at a certain temperature for standby use; the oil phase tank is a storage device for oil phase materials, and the prepared oil phase materials are stored in the oil phase tank and kept at a certain temperature for standby use; the water phase tank is connected to the inlet of the water phase delivery pump through an automatic discharge valve and a connecting pipeline, and the oil phase tank is connected to the inlet of the oil phase delivery pump through another automatic discharge valve and another connecting pipeline; the outlet of the water phase delivery pump is connected to the outlet of the water phase delivery pump through a water-oil phase The pipeline is connected to an inlet of the venturi tube, and the outlet of the oil phase delivery pump is connected to the other inlet of the venturi tube through another water-oil phase pipeline; a mass flowmeter is installed on the water-oil phase pipeline connecting the water phase delivery pump and the venturi tube, and another mass flowmeter is installed on the water-oil phase pipeline connecting the oil phase delivery pump and the venturi tube; the outlet of the venturi tube is connected to the inlet of the multi-stage jet static emulsifier with a flange; the mass flowmeter is a metering device for water-oil phase materials, which accurately measures the instantaneous flow rate and total flow of water-oil phase materials, and provides data support for the production and automatic control of emulsion explosives; the venturi tube is a mixing device for water-oil phase materials, so that a small flow of oil phase materials can stably flow into the main pipeline and be preliminarily mixed with the water phase material;

[0007] The multi-stage jet static emulsifier is composed of an SK-type static mixing tube, an SK-type static mixing unit, a first jet porous plate, a jet emulsification tube, a forward spiral blade, a second jet porous plate, a diaphragm pressure gauge, a reverse spiral blade, an SV-type homogeneous emulsification mixing tube, an SV-type homogeneous emulsification mixing unit, and a pressure relief tube; the number of the SK-type static mixing units is 5 to 20, preferably 8 to 16, and they are continuously connected and built into the SK-type static mixing tube, and the SK-type static mixing tube is connected to the jet emulsification tube and connected by a flange; the jet emulsification tube is composed of a two-section connection combination, the first jet porous plate and the second jet porous plate are respectively located at the inlet of each section of the jet emulsification tube, and the forward spiral blades are respectively located at the inlet of each section of the jet emulsification tube. The blades and reverse spiral blades are respectively built into the outlets of each section of the jet emulsification tube and welded to the jet emulsification tube; the diaphragm pressure gauge is connected to the jet emulsification tube with a thread, and the pressure gauge is directly installed on the pipeline to display the pressure of this section of the pipeline so as to adjust the pressure drop and balance the emulsification effect of each section of the emulsification tube; the outlet of the jet emulsification tube is connected to the SV type emulsification mixing tube by a flange; the number of the SV type emulsification mixing units is 5 to 20, and 8 to 16 are preferred, and they are continuously connected and built into the SV type emulsification mixing tube; the SV type emulsification mixing tube is connected to the pressure release tube by a flange; the multi-stage jet static emulsifier is an emulsification device for the production process of emulsified explosives, which emulsifies water-oil phase materials into a colloidal matrix.

[0008] The water phase delivery pump is a two-stage screw pump, which provides stable water phase materials for the emulsification process during production, with a delivery pressure of 0.5-1.2MP and a flow rate of 1.5-8m 3 .

[0009] The oil phase delivery pump is a two-stage screw pump, which provides stable oil phase materials for the emulsification process during production, with a delivery pressure of 0.5-1.2MP and a flow rate of 0.5-2m 3 .

[0010] The diaphragm pressure gauge is a pressure measuring device that provides support for automatically monitoring production dynamics and adjusting production processes.

[0011] Furthermore, the diameter of the SK type static mixing tube is Φ32-110 mm, and the length is 500-1000 mm.

[0012] Furthermore, the SK type static mixing unit is welded from left and right twisted single spiral sheets, and its main function is to mix the oil and water phase materials together to provide a uniform mixed liquid for emulsification. The twisting angles are 180° and 270° respectively, and the length of a single SK type static mixing unit is 30 to 100 mm.

[0013] Furthermore, the outer diameter of the first jet porous plate / the second jet porous plate is 40 to 110 mm, the number of jet holes on the first jet porous plate / the second jet porous plate is 50 to 300, the diameter of the jet holes is 1.0 to 10.0 mm, preferably 2 to 4 mm; the hole spacing between adjacent jet holes is preferably in the range of 2 to 10 mm, preferably 4 to 8 mm; the size and number of the jet holes on the jet plate are determined according to the flow rate of the mixed liquid and the pressure required for emulsification of the oil-water phase material, and holes of different sizes are designed according to the fluidity of the mixed liquid to balance the pressure drop in each section and ensure the uniformity of emulsification.

[0014] Furthermore, the number of the jet holes on the first jet porous plate / the second jet porous plate is 50 to 300.

[0015] Furthermore, the SV type homogenizing mixing tube has a diameter of Φ32 to 110 mm and a length of 500 to 1000 mm. The SV type homogenizing mixing unit is assembled from corrugated sheets rolled from metal plates. The length of a single SV type homogenizing mixing unit is 30 to 100 mm. Adjacent mixing units are installed at a certain angle so that the emulsified matrix flows in different directions on multiple parallel planes, causing the emulsified matrix to collide and shear during the flow process, thereby achieving the purpose of re-emulsification and homogenization.

[0016] Furthermore, the pressure relief tube is a hollow tube with a large cross-section. The emulsified matrix has a certain pressure after passing through the homogenizing mixing tube. After entering the pressure relief tube, the flow area is suddenly enlarged, which can reduce the fluid velocity and improve production safety.

[0017] The utility model adopts the above technical scheme to provide a static emulsification integrated device for M-type emulsion explosives, which has the characteristics of constant working pressure, stable emulsification quality and high production line safety, and specifically has the following beneficial effects:

[0018] (1) The use of water phase delivery pumps and oil phase delivery pumps can provide stable water-oil phase materials for the emulsification process, ensure a reasonable ratio of water-oil phase materials, make the emulsification process continuous and stable, and provide stable working pressure to provide energy for static emulsification; the use of mass flow meters can accurately record the instantaneous flow and total flow of water and oil phase materials, providing a basis for adjusting production parameters.

[0019] (2) For the first time, it integrates multiple functions such as SK type static mixing, multi-stage jet emulsification, and SV type homogeneous emulsification mixing, and combines forward mixing, reverse mixing, jet shearing, and impact collision into one, greatly improving the explosive emulsification effect and product performance indicators.

[0020] (3) The use of SK type static mixer can premix water and oil phase materials, which is conducive to uniform emulsification.

[0021] (4) The use of a multi-stage jet emulsification tube is conducive to the water-oil phase materials to produce strong shear and collision under the action of high-energy jet fluid, thereby achieving the purpose of rapid and strong emulsification.

[0022] (5) The use of forward spiral units and reverse spiral units can mix the emulsion multiple times, making the emulsification more uniform.

[0023] (6) The SV type static mixing emulsification tube is used to make the emulsified fluid flow in opposite directions on multiple parallel surfaces, so that the emulsified fluids impact each other in the tube, achieving the purpose of strong shearing and fine emulsification, which is conducive to the mutual shearing, collision and mixing of the emulsified matrix to form a uniform and stable emulsified matrix.

[0024] (7) The use of a large-section pressure relief pipe is conducive to releasing excess pressure, allowing the outlet matrix to flow stably at a low speed, thereby improving the inherent safety of the production line.

[0025] (8) The use of diaphragm pressure gauge is conducive to accurately displaying the pipeline pressure, so as to adjust the pressure drop at each level and make the emulsification pressure distribution at each level more reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The utility model is a structural connection diagram of a static emulsification integrated device for M-type emulsion explosive.

[0027] Figure 2 This is a schematic diagram of the structure of the multi-stage jet static emulsifier used in the utility model.

[0028] Figure 3 This is an enlarged cross-sectional view of the jet porous plate of the multi-stage jet static emulsifier used in the utility model.

[0029] Figure 4 yes Figure 3 Middle I section enlarged view.

[0030] Figure markings: 1-SK type static mixing tube; 2-SK type static mixing unit; 3-first jet porous plate; 4-jet emulsification tube; 5-forward spiral unit; 6-second jet porous plate; 7-diaphragm pressure gauge; 8-reverse spiral unit; 9-SV type homogeneous emulsification mixing tube; 10-SV type homogeneous emulsification mixing unit; 11-pressure relief tube; 12-water phase tank; 13-oil phase tank; 14-water phase delivery pump; 15-oil phase delivery pump; 16-mass flowmeter; 17-Venturi tube; G-multi-stage jet static emulsifier. DETAILED DESCRIPTION

[0031] To better describe the present invention, a static emulsification integrated device for M-type emulsion explosive of the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0032] Depend on Figure 1 The utility model is a static emulsification integrated device structure diagram of an M-type emulsion explosive and is combined with Figure 2 , Figure 3 , Figure 4 It can be seen that in the embodiment, the static emulsification integrated device of an M-type emulsion explosive of the utility model is composed of a water phase tank 12, an oil phase tank 13, a water phase delivery pump 14, an oil phase delivery pump 15, two mass flow meters 16, a venturi tube 17, and a multi-stage jet static emulsifier G connected in combination; the water phase tank 12 is connected to the inlet of the water phase delivery pump 14 through an automatic discharge valve and a connecting pipe, and the oil phase tank 13 is connected to the inlet of the oil phase delivery pump 15 through another automatic discharge valve and another connecting pipe; the water phase delivery pump The outlet of the pump 14 is connected to an inlet of the venturi 17 through a water-oil phase pipeline, and the outlet of the oil phase delivery pump 15 is connected to another inlet of the venturi 17 through another water-oil phase pipeline; a mass flow meter 16 is installed on the water-oil phase pipeline connecting the water phase delivery pump 14 and the venturi 17, and another mass flow meter 16 is installed on the water-oil phase pipeline connecting the oil phase delivery pump 15 and the venturi 17; the outlet of the venturi 17 is connected to the inlet of the multi-stage jet static emulsifier G by a flange;

[0033] The multi-stage jet static emulsifier G is composed of a SK type static mixing tube 1, a SK type static mixing unit 2, a first jet porous plate 3, a jet emulsification tube 4, a forward spiral blade 5, a second jet porous plate 6, a diaphragm pressure gauge 7, a reverse spiral blade 8, an SV type homogeneous emulsification mixing tube 9, an SV type homogeneous emulsification mixing unit 10, and a pressure relief tube 11. The SK type static mixing unit 2 is a single spiral blade twisted 180° and 270°, and the SK type static mixing unit 2 is multiple and built in the SK type static mixing tube 1. The SK type static mixing tube 1 is connected to the jet emulsification tube 4 and is connected by a flange. The jet emulsification tube 4 is composed of a two-section connection combination, and the first jet porous plate 3 and the second jet porous plate 6 are respectively located at the jet emulsification tube 9 and the second jet porous plate 6. At the inlet of each section of the flow emulsification tube 4, the forward spiral blades 5 and the reverse spiral blades 8 are respectively built into the outlet of each section of the jet emulsification tube 4 and welded to the jet emulsification tube 4. The diaphragm pressure gauge 7 is connected to the jet emulsification tube 4 with a thread; the outlet of the jet emulsification tube 4 is connected to the SV type emulsification mixing tube 9 by a flange; the SV type emulsification mixing unit 10 is multiple and built into the SV type emulsification mixing tube 9. The SV type emulsification mixing unit 10 is rolled into a corrugated sheet from a metal plate, and the corrugated sheet is assembled according to the emulsification requirements. The channels formed by adjacent corrugated units are inclined in opposite directions and staggered at a certain angle, so that the emulsified fluid flows in opposite directions on multiple parallel planes, so that the emulsified fluid impacts each other in the tube, achieving the purpose of strong shear emulsification. The SV type emulsification mixing tube 9 is connected to the pressure release tube 11 by a flange.

[0034] In the embodiment, the specific parameters of the static emulsification process of the static emulsification integrated device of the utility model for an M-type emulsion explosive are:

[0035] ① Water phase temperature 70~110℃;

[0036] ②Oil phase temperature 70~110℃;

[0037] ③ The working pressure of the water phase delivery pump is 0.3~1.2Mp;

[0038] ④The working pressure of the oil phase delivery pump is 0.3~1.2Mp;

[0039] ⑤Emulsification temperature 70~110℃;

[0040] ⑥Measuring accuracy ±0.1kg;

[0041] ⑦Water phase delivery pump flow rate 1.5~8m 3 / h;

[0042] ⑧Oil phase delivery pump flow rate 0.5~2m 3 / h;

[0043] ⑨The length of a single SK type static mixing unit is 30 to 100 mm;

[0044] ⑩The diameter of the emulsification tube of the multi-stage jet static emulsifier is Φ32~110mm;

[0045] Production capacity 2~10m 3 / h.

[0046] The production process of the static emulsification integrated device of M-type emulsion explosive of the utility model is as follows:

[0047] S1 ingredients: according to the requirements of the production process, prepare water phase materials in the water phase tank 12, stir them evenly, keep them at a certain temperature, and set them aside. The temperature of the water phase materials is 70-110°C; prepare oil phase materials in the oil phase tank 13, stir them evenly, keep them at a certain temperature, and set them aside. The temperature of the oil phase materials is 70-110°C;

[0048] S2 Water and oil phase material transportation: Open the automatic discharge valves of water phase tank 12 and oil phase tank 13 through the automatic control system, the water phase material enters the water phase delivery pump 14, the oil phase material enters the oil phase delivery pump 15, start the water phase delivery pump 14 and the oil phase delivery pump 15 to transport the water and oil phase materials, the flow rate of the water phase delivery pump 14 is 1.5~8m 3 / h, oil phase delivery pump 15 flow rate 0.5~2m 3 / h, working pressure 0.3~1.2Mp;

[0049] S3 Water and oil phase material measurement: Water and oil phase materials pass through the mass flow meter 16, which accurately measures the instantaneous flow and total flow of water and oil phase materials, with a measurement accuracy of ±0.1kg. The signal is fed back to the automatic control center to provide technical support for adjusting production parameters;

[0050] S4 Mixing and emulsification:

[0051] ① Mixing: The water-oil phase material delivered from the water-oil phase delivery pump enters the SK type static mixing tube 1. Under the action of the multi-section SK type static mixing unit 2, multi-directional fluids collide with each other to form turbulence, so that the water-oil phase materials are mixed evenly.

[0052] ② Jet emulsification: The water-oil phase mixed material flowing out of the SK type static mixing tube 1 forms a pressure drop at the first jet porous plate 3 to generate a jet. The high-energy jet causes the water-oil phase mixed material to rub, shear and collide to form an emulsion. The emulsion is rotated and mixed under the action of the forward spiral unit 5; the emulsion flow forms a pressure drop at the second jet porous plate 6 to generate a jet again. The emulsion is sheared, collided and emulsified again to form a basically stable emulsified matrix. Under the action of the reverse spiral unit 8, it is reversely impacted and mixed to form an emulsion.

[0053] ③ Uniform emulsification: The emulsified liquid enters the SV type homogenizing mixing tube 9. Under the action of the SV type homogenizing mixing unit 10, the high-speed flowing emulsion flows in opposite directions on multiple parallel planes, so that the emulsified fluids impact each other in the tube, and the strong shearing is carried out for fine and uniform emulsification to form a high-quality emulsified matrix.

[0054] S5 pressure release: Due to the high pipeline delivery pressure, after the emulsification is completed, the emulsified matrix still has a certain spraying ability. In order to improve the safety of the production line, the high-quality emulsified matrix enters the pressure release pipe 11, and the excess pressure is released to form a stable colloid outflow.

[0055] S6 pressure detection: The diaphragm pressure gauge 7 is connected to the jet emulsification tube 4 to display the pressure inside the jet emulsification tube 4, providing a basis for adjusting the production capacity of emulsion explosives.

[0056] It should be noted that the directions or positional relationships indicated by the terms "inside", "outside", "front", "back", "forward", "reverse", etc. in the present invention are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred parts or elements must have a specific direction, be constructed and operated in a specific direction. The terms "first" and "second" are only for the convenience of description and distinction, and therefore cannot be understood as a limitation on the present invention.

[0057] The above description is only a preferred specific implementation manner 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 within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A static emulsification integrated device for M-type emulsion explosive, characterized in that: It is composed of a water phase tank (12), an oil phase tank (13), a water phase delivery pump (14), an oil phase delivery pump (15), two mass flow meters (16), a venturi tube (17), and a multi-stage jet static emulsifier (G) connected in combination; the water phase tank (12) is connected to the inlet of the water phase delivery pump (14) through an automatic discharge valve and a connecting pipe, and the oil phase tank (13) is connected to the inlet of the oil phase delivery pump (15) through another automatic discharge valve and another connecting pipe; the outlet of the water phase delivery pump (14) is connected to the inlet of the oil phase delivery pump (15) through a water-oil phase pipe. The water-oil pipeline connecting the water-phase delivery pump (14) and the venturi (17) is connected to an inlet of the venturi (17), and the outlet of the oil-phase delivery pump (15) is connected to another inlet of the venturi (17) through another water-oil pipeline; a mass flow meter (16) is installed on the water-oil pipeline connecting the water-phase delivery pump (14) and the venturi (17), and another mass flow meter (16) is installed on the water-oil pipeline connecting the oil-phase delivery pump (15) and the venturi (17); the outlet of the venturi (17) is connected to the inlet of the multi-stage jet static emulsifier (G) by a flange; The multi-stage static jet emulsifier (G) is composed of a SK type static mixing tube (1), a SK type static mixing unit (2), a first jet porous plate (3), a jet emulsification tube (4), a forward spiral blade (5), a second jet porous plate (6), a diaphragm pressure gauge (7), a reverse spiral blade (8), an SV type homogenous emulsification mixing tube (9), an SV type homogenous emulsification mixing unit (10), and a pressure relief tube (11); the number of the SK type static mixing units (2) is 5 to 20, and they are continuously connected and built into the SK type static mixing tube (1); the SK type static mixing tube (1) is connected to the jet emulsification tube (4) by a flange connection; the jet emulsification tube (4) The invention is composed of two sections connected in combination, wherein the first jet porous plate (3) and the second jet porous plate (6) are respectively located at the inlet of each section of the jet emulsification tube (4), the forward spiral blade (5) and the reverse spiral blade (8) are respectively built in the outlet of each section of the jet emulsification tube (4) and welded to the jet emulsification tube (4), and the diaphragm pressure gauge (7) is connected to the jet emulsification tube (4) by means of threads; the outlet of the jet emulsification tube (4) is connected to the SV type homogenizing and mixing tube (9) by means of flanges; the number of the SV type homogenizing and mixing units (10) is 5 to 20, and they are continuously connected and built in the SV type homogenizing and mixing tube (9); the SV type homogenizing and mixing tube (9) is connected to the pressure relief tube (11) by means of flanges.

2. The static emulsification integrated device for M-type emulsion explosive according to claim 1, characterized in that: The number of the SK type static mixing units (2) is 8 to 16; the number of the SV type homogenizing mixing units (10) is 8 to 16.

3. The static emulsification integrated device for M-type emulsion explosive according to claim 1, characterized in that: The SK type static mixing tube (1) has a diameter of Φ32-110 mm and a length of 500-1000 mm.

4. The static emulsification integrated device for M-type emulsion explosive according to claim 3, characterized in that: The SK type static mixing unit (2) is a single spiral sheet twisted by 180° and 270°, and the length of a single SK type static mixing unit (2) is 30 to 100 mm.

5. A static emulsification integrated device for M-type emulsion explosive as claimed in claim 1, 2, 3 or 4, characterized in that: The outer diameter of the first jet porous plate (3) / the second jet porous plate (6) is 40 to 110 mm, the number of jet holes on the first jet porous plate (3) / the second jet porous plate (6) is 50 to 300, and the diameter of the jet holes is 1.0 to 10.0 mm.

6. The static emulsification integrated device for M-type emulsion explosive according to claim 5, characterized in that: The number of jet holes on the first jet porous plate (3) / the second jet porous plate (6) is 50 to 300.

7. The static emulsification integrated device for M-type emulsion explosive according to claim 6, characterized in that: The hole spacing between adjacent jet holes on the first jet porous plate (3) / the second jet porous plate (6) is in the range of 2 to 10 mm.

8. The static emulsification integrated device for M-type emulsion explosive according to claim 7, characterized in that: The hole spacing between adjacent jet holes on the first jet porous plate (3) / the second jet porous plate (6) is in the range of 4 to 8 mm.

9. The static emulsification integrated device for M-type emulsion explosive according to claim 8, characterized in that: The SV type homogenizing mixing tube (9) has a diameter of Φ32-110 mm and a length of 500-1000 mm. The SV type homogenizing mixing unit (10) is assembled from corrugated sheets rolled from metal plates. Adjacent mixing units are installed at a certain angle. The length of a single SV type homogenizing mixing unit (10) is 30-100 mm.

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