Explosion-proof furnace with double-layer structure

Abstract

The utility model relates to the technical field of explosive treatment, and provides an explosion-proof furnace with a double-layer structure, which comprises an upper furnace cover arranged on a bracket in a lifting manner; the lower furnace body is arranged on the support and provided with an inner space, the upper furnace cover abuts against or is far away from the lower furnace body after lifting, and the inner space is sealed after the upper furnace cover abuts against the lower furnace body. The inner furnace body is arranged in the inner space and provided with an anti-explosion space. By means of the technical scheme, the problem that in the prior art, an explosion furnace is low in safety is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of explosive treatment, in particular to an explosion-proof furnace with a double-layer structure. Background Art

[0002] Explosives destruction is a complex and highly specialized procedure designed to safely eliminate the threat to public safety posed by explosives. Common destruction methods include, but are not limited to: explosion, burning, solidification, chemical analysis and water jetting. For waste explosives, shells, detonators, etc., explosion or burning methods are usually used. In both explosion and burning methods, explosion furnaces are inevitably used. Explosion furnaces can withstand the explosive power of explosives and prevent the explosion of explosives from causing damage to the surrounding area.

[0003] The explosion furnace in the prior art is usually a closed space made of a single layer of impact-resistant material. During use, an accident may occur because the shell of the explosion furnace cannot withstand the impact. Utility Model Content

[0004] The utility model provides a double-layer explosion-proof furnace, which solves the problem of low safety of explosion furnaces in related technologies.

[0005] The technical solution of the utility model is as follows:

[0006] A double-layer explosion-proof furnace, comprising:

[0007] Bracket;

[0008] An upper furnace cover is lifted and arranged on the bracket;

[0009] A lower furnace body is arranged on the bracket, the lower furnace body has an internal space, the upper furnace cover abuts against or moves away from the lower furnace body after being raised or lowered, and the internal space is sealed after the upper furnace cover abuts against the lower furnace body;

[0010] The inner furnace body is arranged in the inner space, and the inner furnace body has an explosion-proof space.

[0011] Optionally, the upper furnace cover has a protrusion, and the explosion-proof space has an opening. After the upper furnace cover is close to the lower furnace body, the protrusion closes the opening.

[0012] Optionally, it also includes:

[0013] An electric heating element is arranged on the lower furnace body, and the electric heating element is used to heat the inner furnace body.

[0014] Optionally, it also includes:

[0015] A delivery pipe is arranged on the upper furnace cover, the delivery pipe passes through the upper furnace cover, and after the upper furnace cover is close to the lower furnace body, one end of the delivery pipe extends into the explosion-proof space, and the other end of the delivery pipe is connected to the fuel tank;

[0016] A spark plug is arranged at one end of the delivery pipe close to the explosion-proof space, and the spark plug is used to ignite the fuel in the explosion-proof space.

[0017] Optionally, the lower furnace body is movably arranged relative to the support, further comprising:

[0018] A first telescopic member, disposed on the bracket;

[0019] A fixing ring is rotatably arranged at the telescopic end of the first telescopic member, and the fixing ring is used to fix the lower furnace body. After the first telescopic member is telescoped, the fixing ring drives the lower furnace body to approach or move away from the upper furnace cover.

[0020] Optionally, the bracket has two slideways spaced apart from each other, the fixing ring has a slider, and the slider is slidably disposed in the slideways, and further comprises:

[0021] A gear, arranged on the fixing ring;

[0022] A rack is arranged on the bracket, and the rack is located between the two slideways. After the fixing ring is raised or lowered, the gear is meshed with the rack.

[0023] Optionally, it also includes:

[0024] A second telescopic member is arranged on the bracket, and the upper furnace cover is arranged at the telescopic end of the second telescopic member.

[0025] Optionally, the first telescopic member and the second telescopic member are hydraulic cylinders.

[0026] Optionally, the fixing ring comprises:

[0027] a first snap ring, the first snap ring having a first mounting hole;

[0028] A second clamping ring, wherein the second clamping ring has a second mounting hole, the first clamping ring and the second clamping ring form a clamping space, and the axis of the first mounting hole is collinear with the axis of the second mounting hole;

[0029] A bolt, wherein the bolt screw passes through the first mounting hole and the second mounting hole;

[0030] A nut is threadedly connected to the bolt, and the bolt and the nut lock the first clamping ring and the second clamping ring.

[0031] Optionally, there are two first telescopic members, two ends of the fixing ring are rotatably disposed on the two first telescopic members respectively, the rotation axes of the two fixing rings are colinear, and the two first telescopic members are symmetrically distributed relative to the center of the fixing ring.

[0032] The working principle and beneficial effects of the utility model are:

[0033] In the utility model, the explosion-proof furnace adopts double-layer protection of inner furnace body and outer furnace body. The outer furnace body is composed of upper furnace cover and lower furnace body. The material to be detonated is placed in the explosion-proof space for detonation. The inner furnace body is used to withstand the explosion of the explosive. During the explosion process, if the inner furnace body is damaged, the outer furnace body can play a role of insurance to prevent the explosion from affecting the outside world. The outer furnace body adopts the form of upper furnace cover and lower furnace body. After the upper furnace cover is away from the lower furnace body, the inner furnace body can be taken out and replaced, so that the explosion-proof furnace is always in a state with a high safety factor. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0035] Figure 1 It is a schematic diagram of the structure of the utility model;

[0036] Figure 2 This is a bottom view of the utility model;

[0037] Figure 3 For this utility model Figure 2 Middle AA section view.

[0038] In the figure: 100, bracket, 200, upper furnace cover, 300, lower furnace body, 310, internal space, 400, inner furnace body, 410, explosion-proof space, 210, protrusion, 411, opening, 500, electric heating element, 600, delivery pipe, 700, spark plug, 800, first telescopic member, 900, fixing ring, 110, slideway, 910, slider, 920, gear, 120, rack, 1000, second telescopic member, 930, first retaining ring, 931, first mounting hole, 940, second retaining ring, 941, second mounting hole, 950, bolt, 960, nut. DETAILED DESCRIPTION

[0039] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0040] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0041] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0042] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0043] Reference Figure 1~Figure 3 The utility model proposes a double-layer explosion-proof furnace, including an upper furnace cover 200, which is lifted and lowered on a bracket 100; a lower furnace body 300 is arranged on the bracket 100, and the lower furnace body 300 has an internal space 310. After the upper furnace cover 200 is lifted and lowered, it abuts against or moves away from the lower furnace body 300. After the upper furnace cover 200 abuts against the lower furnace body 300, the internal space 310 is sealed; an inner furnace body 400 is arranged in the internal space 310, and the inner furnace body 400 has an explosion-proof space 410.

[0044] In this embodiment, the explosion-proof furnace adopts double-layer protection of the inner furnace body 400 and the outer furnace body. The outer furnace body is composed of an upper furnace cover 200 and a lower furnace body 300. The material to be detonated is placed in the explosion-proof space 410 for detonation. The inner furnace body 400 is used to withstand the explosion of the explosive. During the explosion process, the inner furnace body 400 is damaged, and the outer furnace body can play a role of insurance to prevent the explosion from affecting the outside world. The outer furnace body adopts the form of a split upper furnace cover 200 and a lower furnace body 300. After the upper furnace cover 200 is away from the lower furnace body 300, the inner furnace body 400 can be taken out and replaced, so that the explosion-proof furnace is always in a state with a high safety factor.

[0045] Furthermore, the upper furnace cover 200 has a protrusion 210 , and the explosion-proof space 410 has an opening 411 . When the upper furnace cover 200 is close to the lower furnace body 300 , the protrusion 210 closes the opening 411 .

[0046] In this embodiment, the explosion-proof space 410 has one and only one opening 411 for placing explosives or removing explosive debris. One opening 411 can minimize the pressure on the upper road cover and the lower furnace body 300. The upper furnace cover 200 has a protrusion 210 at one end close to the lower furnace body 300. After the upper furnace cover 200 abuts against the lower furnace body 300, the protrusion 210 enters the internal space 310 and closes the opening 411, so that the impact force generated by the explosion is fully borne by the inner furnace body 400.

[0047] Furthermore, an electric heating element 500 is included, which is arranged on the lower furnace body 300 , and the electric heating element 500 is used to heat the inner furnace body 400 .

[0048] Furthermore, it also includes a delivery pipe 600, which is arranged on the upper furnace cover 200. The delivery pipe 600 passes through the upper furnace cover 200. After the upper furnace cover 200 is close to the lower furnace body 300, one end of the delivery pipe 600 extends into the explosion-proof space 410, and the other end of the delivery pipe 600 is connected to the fuel tank; the spark plug 700 is arranged at one end of the delivery pipe 600 close to the explosion-proof space 410, and the spark plug 700 is used to ignite the fuel in the explosion-proof space 410.

[0049] In this embodiment, after the explosive is placed in the explosion-proof space 410, the electric heating element 500 can be used to heat the inner furnace body 400 by interlayer heat transfer, so that the temperature of the inner furnace body 400 is continuously increased, and after reaching the detonation point of the explosive in the explosion-proof space 410, the explosive in the explosion-proof space 410 is detonated. A delivery pipe 600 can also be used to transport flammable materials such as diesel, natural gas, and oil into the explosion-proof space 410. The delivery pipe 600 is made of explosion-proof material. After the flammable material is transported into the explosion-proof space 410, it can be ignited by a spark plug 700 to cause the explosive in the explosion-proof space 410 to explode. The heating temperature rise rate of the electric heating element 500 is slow, but the controllability is high. The ignition method to detonate the explosive has the characteristics of fast heating speed and fast detonation. The detonation method can be selected according to the actual use situation.

[0050] Furthermore, the lower furnace body 300 is movably arranged relative to the bracket 100, and also includes a first telescopic member 800, which is arranged on the bracket 100; a fixed ring 900 is rotatably arranged at the telescopic end of the first telescopic member 800, and the fixed ring 900 is used to fix the lower furnace body 300. After the first telescopic member 800 is extended and retracted, the fixed ring 900 drives the lower furnace body 300 to approach or move away from the upper furnace cover 200.

[0051] In this embodiment, the lower furnace body 300 can move relative to the bracket 100. After the lower furnace body 300 moves, it moves away from or close to the upper furnace cover 200. After the lower furnace body 300 moves away from the upper furnace cover 200, it is convenient to clean up the explosion debris in the explosion-proof space 410. The fixing ring 900 can fix the lower furnace body 300, and the first telescopic member 800 can play a role in supporting the fixing ring 900. Moreover, the fixing ring 900 is rotatably arranged at the telescopic end of the first telescopic member 800, so that the fixing ring 900 can drive the lower furnace body 300 to rotate. After the lower furnace body 300 rotates, the opening 411 can face downward, which is convenient for cleaning up the explosive debris in the explosion-proof space 410.

[0052] Furthermore, the bracket 100 has two slideways 110 spaced apart from each other, the fixed ring 900 has a slider 910, the slider 910 is slidably set in the slideway 110, and also includes a gear 920 set on the fixed ring 900; the rack 120 is set on the bracket 100, and the rack 120 is located between the two slideways 110. After the fixed ring 900 is raised or lowered, the gear 920 engages with the rack 120.

[0053] In this embodiment, after the first telescopic member 800 is extended and retracted, the fixed ring 900 is lifted and lowered relative to the ground, and the slider 910 on the fixed ring can slide in the slideway 110. The restrictions of the slideway 110 and the slider 910 can make the fixed ring 900 more stable in the process of driving the lower furnace body 300 to move. When the fixed ring 900 moves to the rack 120, the gear 920 meshes with the rack 120, and the gear 920 rotates to drive the fixed ring 900 to rotate, and the fixed ring 900 drives the lower furnace body 300 to rotate, thereby achieving the tilting or downward facing of the opening 411. The slideway 110, the slider 910, the gear 920, and the rack 120 can not only make the fixed ring 900 move more stably during the lifting process, but also make the fixed ring 900 complete the rotation during the lifting process.

[0054] Furthermore, it also includes a second telescopic member 1000 , which is arranged on the bracket 100 , and the upper furnace cover 200 is arranged at the telescopic end of the second telescopic member 1000 .

[0055] In this embodiment, the second telescopic member 1000 can not only enable the upper furnace cover 200 to seal the internal space 310 and the explosion-proof space 410, but also press the upper furnace cover 200 onto the lower furnace body 300 to prevent the upper furnace cover 200 from flying apart due to an explosion.

[0056] Furthermore, the first telescopic member 800 and the second telescopic member 1000 are hydraulic cylinders.

[0057] In this embodiment, the first telescopic member 800 and the second telescopic member 1000 are hydraulic cylinders, which can withstand greater pressure and are convenient for adapting to the weight of the explosion-proof furnace and withstanding explosion pressure.

[0058] Further, the fixing ring 900 comprises:

[0059] A first snap ring 930, the first snap ring 930 having a first mounting hole 931;

[0060] A second clamping ring 940, wherein the second clamping ring 940 has a second mounting hole 941, the first clamping ring 930 and the second clamping ring 940 form a clamping space, and the axis of the first mounting hole 931 is colinear with the axis of the second mounting hole 941;

[0061] Bolt 950, the screw rod of bolt 950 passes through the first mounting hole 931 and the second mounting hole 941;

[0062] The nut 960 is threadedly connected to the bolt 950 , and the bolt 950 and the nut 960 lock the first clamping ring 930 and the second clamping ring 940 .

[0063] In this embodiment, the first clamping ring 930 and the second clamping ring 940 are used to clamp the lower furnace body 300, and the first clamping ring 930 and the second clamping ring 940 are clamped by bolts 950 and nuts 960, which not only facilitates the disassembly and installation of the lower furnace body 300, but also helps the fixing ring 900 to adapt to changes in the diameter of the lower furnace body 300, thereby reducing the processing accuracy of the lower furnace body 300 and reducing production costs.

[0064] Furthermore, there are two first telescopic members 800 , and both ends of the fixing ring 900 are rotatably disposed on the two first telescopic members 800 , respectively. The rotation axes of the two fixing rings 900 are colinear, and the two first telescopic members 800 are symmetrically distributed relative to the center of the fixing ring 900 .

[0065] In this embodiment, the two first telescopic members 800 are symmetrically distributed at both ends of the fixing ring 900, so that the fixing ring 900 can be more stably stressed and the furnace body 300 is prevented from tilting during the movement.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A double-layer explosion-proof furnace, characterized in that: include: Bracket (100); An upper furnace cover (200) is arranged on the support (100) in a lifting manner; A lower furnace body (300) is arranged on the support (100), the lower furnace body (300) having an internal space (310), the upper furnace cover (200) abutting against or away from the lower furnace body (300) after being raised or lowered, and the internal space (310) is sealed after the upper furnace cover (200) abuts against the lower furnace body (300); The inner furnace body (400) is arranged in the internal space (310), and the inner furnace body (400) has an explosion-proof space (410).

2. A double-layer explosion-proof furnace according to claim 1, characterized in that: The upper furnace cover (200) has a protrusion (210), and the explosion-proof space (410) has an opening (411). When the upper furnace cover (200) is close to the lower furnace body (300), the protrusion (210) closes the opening (411).

3. The double-layer explosion-proof furnace according to claim 2, characterized in that: Also includes: An electric heating element (500) is arranged on the lower furnace body (300), and the electric heating element (500) is used to heat the inner furnace body (400).

4. The double-layer explosion-proof furnace according to claim 2, characterized in that: Also includes: A delivery pipe (600) is arranged on the upper furnace cover (200), and the delivery pipe (600) passes through the upper furnace cover (200). After the upper furnace cover (200) is close to the lower furnace body (300), one end of the delivery pipe (600) extends into the explosion-proof space (410), and the other end of the delivery pipe (600) is connected to the fuel tank; A spark plug (700) is arranged at one end of the delivery pipe (600) close to the explosion-proof space (410), and the spark plug (700) is used to ignite the fuel in the explosion-proof space (410).

5. The double-layer explosion-proof furnace according to claim 1, characterized in that: The lower furnace body (300) is movably arranged relative to the support (100), and further comprises: A first telescopic member (800) is arranged on the bracket (100); A fixing ring (900) is rotatably arranged at the telescopic end of the first telescopic member (800), and the fixing ring (900) is used to fix the lower furnace body (300). After the first telescopic member (800) is telescoped, the fixing ring (900) drives the lower furnace body (300) to move closer to or away from the upper furnace cover (200).

6. The double-layer explosion-proof furnace according to claim 5, characterized in that: The bracket (100) is provided with two slideways (110) spaced apart from each other, the fixing ring (900) is provided with a sliding block (910), and the sliding block (910) is slidably disposed in the slideway (110), and further comprises: A gear (920) disposed on the fixing ring (900); A rack (120) is arranged on the bracket (100), and the rack (120) is located between the two slideways (110). After the fixing ring (900) is raised or lowered, the gear (920) meshes with the rack (120).

7. The double-layer explosion-proof furnace according to claim 5, characterized in that: Also includes: The second telescopic member (1000) is arranged on the bracket (100), and the upper furnace cover (200) is arranged at the telescopic end of the second telescopic member (1000).

8. The double-layer explosion-proof furnace according to claim 7, characterized in that: The first telescopic member (800) and the second telescopic member (1000) are hydraulic cylinders.

9. The double-layer explosion-proof furnace according to claim 5, characterized in that: The fixing ring (900) comprises: A first snap ring (930), the first snap ring (930) having a first mounting hole (931); A second clamping ring (940), the second clamping ring (940) having a second mounting hole (941), the first clamping ring (930) and the second clamping ring (940) forming a clamping space, and an axis of the first mounting hole (931) and an axis of the second mounting hole (941) being collinear; A bolt (950), wherein the screw rod of the bolt (950) passes through the first mounting hole (931) and the second mounting hole (941); A nut (960) is threadedly connected to the bolt (950), and the bolt (950) and the nut (960) lock the first clamping ring (930) and the second clamping ring (940).

10. The double-layer explosion-proof furnace according to claim 5, characterized in that: There are two first telescopic members (800), and the two ends of the fixing ring (900) are rotatably arranged on the two first telescopic members (800) respectively, the rotation axes of the two fixing rings (900) are colinear, and the two first telescopic members (800) are symmetrically distributed relative to the center of the fixing ring (900).

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