Pressing device of molecular sieve of nitrogen making machine for coal mine

Abstract

The utility model belongs to the technical field of molecular sieve pressing devices, and discloses a pressing device of a molecular sieve of a nitrogen making machine for a coal mine, which comprises a container piece and a pressing piece which are arranged in the nitrogen making machine, the top of the container piece is open to form a cavity, the pressing piece is arranged in the cavity, and the pressing piece comprises a bottom plate and a pressing plate. The bottom plate is arranged in a cavity of the container part, the top of the bottom plate is fixedly connected with an ejector rod, the pressing plate is provided with a connecting hole matched with the ejector rod, the pressing plate is arranged on the ejector rod in a sleeving manner, and the ejector rod is connected with a detachable screw ring in a screwing manner. The pressing plate is connected with the ejector rod through the connecting hole, and the screw ring is connected with the ejector rod in a screwing manner, so that the pressing plate is propped against the molecular sieve for fixing, and the molecular sieve filling amount of the device can be adjusted according to the use scene through propping against the molecular sieve by the pressing plate, and the use range of the device is widened.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of molecular sieve pressing device, concretely relates to a coal mine nitrogen generator molecular sieve pressing device. BACKGROUND

[0002] In the working process of the coal mine nitrogen generator, the pressure at the top of the adsorption tower is lower and the pressure at the bottom is higher, and the pressure difference leads to uneven stress on the upper and lower parts of the molecular sieve, which easily leads to carbon molecular sieve pulverization. The pulverized molecular sieve not only reduces the yield and purity of nitrogen, but also may cause fire hazards and other safety hazards after being injected into the goaf in the coal mine. Therefore, the molecular sieve needs to be pressed by a pressing device, but the existing device has certain defects when in use, for example, in the Chinese patent with the publication number "CN221742928 U", a molecular sieve pressing device for a nitrogen generator is disclosed, an adsorption tower flange cover is fixed at the top end of the adsorption tower, a cylinder is fixed at the upper end of the adsorption tower flange cover, one end of the cylinder is provided with an opening, the opening of the cylinder is fixed on the upper surface of the adsorption tower flange cover in a reverse manner, a piston is slidably installed in the cylinder, a piston rod is installed at the lower end of the piston, and the piston rod penetrates the adsorption tower flange cover; the lower end of the adsorption tower flange cover is provided with a pressure distributor, the end of the piston rod penetrates the adsorption tower flange cover, and the pressure distributor is pressed, so that the pressure distributor presses the molecular sieve. Although the device can press the molecular sieve, the filling amount is fixed and cannot be adjusted according to the actual use scene, and when the device is replaced with the molecular sieve, the molecular sieve is not easy to collect and replace, and the replacement efficiency is low. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing a coal mine nitrogen generator molecular sieve pressing device to solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a coal mine nitrogen generator molecular sieve pressing device, which comprises a container and a pressing part installed in the nitrogen generator, the top of the container is open to form a cavity, the pressing part is installed in the cavity, and the pressing part comprises a bottom plate and a pressing plate, the top of the bottom plate is fixedly connected with a top rod, a connecting hole matched with the top rod is formed in the pressing plate, the pressing plate is sleeved on the top rod, a detachable spiral ring is rotatably connected with the top rod, the spiral ring is above the pressing plate, a placing cavity for filling the molecular sieve is formed between the pressing plate and the bottom plate, and a second gas guide hole is formed in the pressing plate and the bottom plate.

[0005] Preferably, the container comprises a cylinder, the top of the cylinder is open to form an inner cavity, and a plurality of first gas guide holes are formed in the bottom of the cylinder.

[0006] Preferably, the top of the bottom plate is inclined downward to form a slope from the middle position to the periphery.

[0007] Preferably, two side plates are symmetrically and fixedly connected to the peripheral surface of the barrel, through holes are formed in the side plates, and screw rods are arranged on the side plates and penetrate the through holes.

[0008] Preferably, a material guiding cover is fixedly connected to the peripheral surface of the barrel, the material guiding cover is above the side plates, a material discharging hole is formed in the bottom of the material guiding cover, and a material guiding cavity is formed in the material guiding cover.

[0009] Preferably, the diameter of the material guiding cavity gradually decreases from the top to the bottom.

[0010] Compared with the prior art, the device has the following beneficial effects:

[0011] (1) The bottom plate is placed in the cavity of the container, supports the molecular sieve through the bottom plate, is connected with the top rod through the connecting hole, and is screw-coupled with the top rod, so that the pressing plate is fixed by abutting against the pressing plate, and the amount of the molecular sieve filled in the device can be adjusted according to the use scene, thereby improving the use range of the device.

[0012] (2) When the personnel need to replace the molecular sieve, the top rod is pulled to move, the top rod drives the bottom plate to move upwards, the molecular sieve is moved to the outside of the barrel, the molecular sieve on the bottom plate is automatically slid out of the barrel, the molecular sieve is collected through the material guiding cavity of the material guiding cover, and the molecular sieve is concentratedly discharged through the material discharging hole, so that the molecular sieve is convenient to collect and replace, the replacement difficulty is low, and the replacement efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is one of the perspective views of the device;

[0014] Figure 2 is the second perspective view of the device;

[0015] Figure 3 is one of the exploded views of the device;

[0016] Figure 4 is the second exploded view of the device;

[0017] Figure 5 is the front view of the device; Figure 3

[0018] In the figure: 1, container; 11, barrel; 12, inner cavity; 13, side plate; 14, through hole; 15, screw rod; 16, material guiding cover; 17, material guiding cavity; 18, material discharging hole; 19, first air guiding hole; 2, pressing part; 21, bottom plate; 22, second air guiding hole; 23, top rod; 24, pressing plate; 25, connecting hole; 26, screw ring; 27, slope.​ DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0020] Please refer to Figures 1-5 The technical solutions provided by the present application are as follows.

[0021] The compacting device for the molecular sieve of the nitrogen generator for coal mine comprises a container 1 and a compacting part 2 installed in the nitrogen generator, the top of the container 1 is open to form a cavity, the compacting part 2 is installed in the cavity, the compacting part 2 comprises a bottom plate 21 and a pressing plate 24, the top of the bottom plate 21 is fixedly connected with a top rod 23, a connecting hole 25 matched with the top rod 23 is formed in the pressing plate 24, the pressing plate 24 is sleeved on the top rod 23, a detachable screw ring 26 is screw-connected on the top rod 23, the screw ring 26 is above the pressing plate 24, a placing cavity for filling the molecular sieve is formed between the pressing plate 24 and the bottom plate 21, and a second gas guide hole 22 is formed in the pressing plate 24 and the bottom plate 21.

[0022] According to the above technical solution, when the personnel need to compact the molecular sieve, the container 1 is fixed in the nitrogen generator, the bottom plate 21 is placed in the cavity, the molecular sieve is guided into the cavity after the bottom plate 21 is placed, so that the molecular sieve is above the bottom plate 21, the pressing plate 24 is connected with the top rod 23 through the connecting hole 25 after the molecular sieve is poured, the pressing plate 24 is in contact with the molecular sieve, until the pressing plate 24 compacts the molecular sieve, the screw ring 26 is screw-connected with the top rod 23, so as to fix the pressing plate 24, and the gas is allowed to flow through the second gas guide hole 22 after the molecular sieve is compacted, so as to facilitate the nitrogen generation of the nitrogen generator.

[0023] Specifically, in an embodiment, regarding the above container 1, as shown in Figures 1-4 The container 1 comprises a barrel 11, the top of the barrel 11 is open to form an inner cavity 12, and the bottom of the barrel 11 forms a plurality of first gas guide holes 19.

[0024] In the embodiment, when the personnel need to compress the molecular sieve, the cylinder body 11 is fixed in the nitrogen making machine, the bottom plate 21 is placed in the inner cavity 12, the molecular sieve is introduced into the inner cavity 12 and is above the bottom plate 21, the pressing plate 24 is connected with the top rod 23 through the connecting hole 25, the pressing plate 24 is in contact with the molecular sieve, until the pressing plate 24 compresses the molecular sieve, the screw ring 26 is screwed with the top rod 23, so that the pressing plate 24 is fixed, when the molecular sieve is compressed, the gas is circulated through the cooperation of the second gas guide hole 22 and the first gas guide hole 19, so that the nitrogen making machine is convenient for making nitrogen, when the personnel need to take out the molecular sieve for replacement, the screw ring 26 is unscrewed, the pressing plate 24 is removed, the top rod 23 is pulled, the top rod 23 drives the bottom plate 21 to move, so that the bottom plate 21 drives the molecular sieve to move upwards, until the molecular sieve moves to the outside of the cylinder body 11, the molecular sieve is replaced.

[0025] When the personnel need to replace the molecular sieve, in order to facilitate the discharge of the molecular sieve, as shown in the drawings, the top of the bottom plate 21 is inclined downward from the middle position to the periphery to form a slope 27. Figure 5

[0026] In the embodiment, when the personnel need to take out the molecular sieve for replacement, when the bottom plate 21 drives the molecular sieve to move upwards and the molecular sieve moves to the outside of the cylinder body 11, the slope 27 is cooperated to make the molecular sieve automatically slide downwards, so that the molecular sieve to be replaced is taken out.

[0027] In addition, in the utility model, in order to facilitate the fixation of the cylinder body 11, as shown in the drawings, the peripheral surface of the cylinder body 11 is fixedly connected with two side plates 13, the through hole 14 is formed in the side plate 13, the screw rod 15 is arranged on the side plate 13, and the free end of the screw rod 15 penetrates through the through hole 14. Figures 1-5

[0028] In the embodiment, when the personnel need to replace the cylinder body 11, the cylinder body 11 is placed in the nitrogen making machine, the screw rod 15 penetrates through the through hole 14 on the side plate 13 and rotates, so that the screw rod 15 enters other objects, and the cylinder body 11 is fixed.

[0029] In order to collect the taken-out molecular sieve, as shown in the drawings, the peripheral surface of the cylinder body 11 is fixedly connected with the material guide cover 16, the material guide cover 16 is above the side plate 13, the bottom of the material guide cover 16 is provided with the discharge hole 18, the inner part of the material guide cover 16 forms the material guide cavity 17, and the diameter of the material guide cavity 17 gradually decreases from the top to the bottom. Figures 1-5

[0030] ​​​In the embodiment, when the molecular sieve slides down the slope 27, the molecular sieve is received by the guide cover 16 and guided by the guide cavity 17, so that the molecular sieve is discharged through the discharge hole 18, the molecular sieve is conveniently collected, and the replacement efficiency of the molecular sieve is improved.

[0031] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coal mine nitrogen generator molecular sieve compactor characterized in that: The utility model provides a container (1) and a pressing part (2) installed in the inside of nitrogen making machine, the container (1) top is open and forms a cavity, the pressing part (2) is installed in the inside of cavity, and the pressing part (2) includes bottom plate (21) and pressing plate (24), the top fixed connection of bottom plate (21) has top rod (23), and the pressing plate (24) is set up on the top rod (23) and is equipped with the connecting hole (25) matched with top rod (23), and the pressing plate (24) is set on top rod (23), the top rod (23) is detachably screwed with the screw ring (26), the screw ring (26) is above the pressing plate (24), the pressing plate (24) and bottom plate (21) form the placement cavity filled with molecular sieve, and the pressing plate (24) and bottom plate (21) are all equipped with the second gas guide hole (22) of through type.

2. The nitrogen generator molecular sieve compactor for coal mine of claim 1, wherein: The container (1) includes a cylinder (11), the cylinder (11) top is open and forms an inner cavity (12), and the cylinder (11) bottom forms a plurality of first gas guide holes (19).

3. The nitrogen generator compactor according to claim 1, wherein: The bottom plate (21) top is inclined downward and forms a slope (27) from the middle position to all around.

4. The nitrogen generator compacting device for coal mine of claim 2, wherein: The cylinder (11) circumferential surface is fixedly connected with two side plates (13), the side plate (13) is equipped with the through hole (14) of through type, and the side plate (13) is provided with a screw rod (15), and the free end of screw rod (15) penetrates through the through hole (14).

5. The compacting device of a molecular sieve of a nitrogen generator for coal mine according to claim 2 or 4, characterized in that: The circumferential surface of the cylinder (11) is fixedly connected with a material guide cover (16), the material guide cover (16) is above the side plate (13), and the bottom of the material guide cover (16) is equipped with a discharge hole (18), and the inside of the material guide cover (16) forms a material guide cavity (17).

6. The nitrogen generator compacting device for coal mine according to claim 5, characterized in that: The diameter of the material guide cavity (17) gradually reduces from top to bottom.

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