Dry powder extinguishing agent filtering device

Abstract

The utility model provides a dry powder extinguishing agent filtering device, belongs to the technical field of dry powder extinguishing agent production, and aims to solve the problem that when an existing rotary vibration screen vibrates, dry powder raw materials on the upper layer are prone to raising, and consequently the workshop environment is polluted. Comprising a rotary vibration screen body, a screening connecting cover, a feeding hopper, a discharging hopper, a vibration motor, a feeding dustproof frame, a feeding conveying barrel, a feeding dustproof mechanism and a feeding dispersing mechanism. The screening connecting cover is fixedly connected to the upper portion of the rotary vibration screen body. The feeding hopper is fixedly connected to the upper end of the screening connecting cover; the vibration motors are fixedly connected to the left side and the right side of the rotary vibration screen body correspondingly. The feeding dustproof frame is fixedly connected to the lower end of the screening connecting cover. The feeding conveying cylinder is connected to the inner side of the feeding dustproof frame in a sliding manner; the feeding dustproof mechanism is arranged below the feeding dustproof frame; and the feeding dispersion mechanism is arranged at the lower end of the front of the feeding dustproof frame, so that the dry powder raw materials are prevented from running out during vibration filtering, and the cleanliness of the working environment is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of dry powder fire extinguishing agent production, and more specifically, particularly relates to a dry powder fire extinguishing agent filtering device. Background Art

[0002] During the production and processing of dry powder fire extinguishing agent, the raw materials of dry powder fire extinguishing agent need to be screened and filtered. The existing raw materials of dry powder fire extinguishing agent are generally filtered by a rotary vibrating screen. During operation, workers are required to pour the raw materials into the interior of the rotary vibrating screen, and the raw materials of the dry powder fire extinguishing agent are screened by the vibration filtration of the rotary vibrating screen.

[0003] The existing application number is: CN202310191049.9 The present invention relates to an anti-caking dry powder fire extinguishing agent and a preparation method thereof, belonging to the field of fire fighting technology. The fire extinguishing agent includes, by weight percentage: 3.5-4.2% moisture-proof agent and 3.8-6.5% lubricating dispersant, and the balance is a fire extinguishing base material; wherein, the fire extinguishing base material is based on monoammonium phosphate, co-crystallized with potassium chlorate, and the crystal form is spherical, with good fluidity, and then coated with sodium carboxymethyl cellulose to reduce the formation of bridging agglomerates on the surface of the crystal, and the instability of potassium chlorate causes a small-scale low-intensity explosion at the injection port, destroying the coating layer, so that the powder is evenly atomized and dispersed, achieving a good fire extinguishing effect; the moisture-proof agent is based on zeolite micropowder treated with pore expansion, and the moisture-absorbing material is deposited in the pores by a filling method, which has a good moisture-absorbing and discrete effect, achieving a moisture-proof effect.

[0004] Based on the above, when filtering the raw materials of dry powder fire extinguishing agent, it is necessary to continuously add materials to the vibrating screen. At the same time, since the raw materials of dry powder fire extinguishing agent are in powder form, the upper layer of dry powder raw materials are easily lifted up when the vibrating screen vibrates, causing pollution to the workshop environment. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a dry powder fire extinguishing agent filtering device to solve the problem that when filtering the raw materials of the dry powder fire extinguishing agent, it is necessary to continuously add materials to the rotary vibrating screen. At the same time, since the raw materials of the dry powder fire extinguishing agent are in powder form, when the rotary vibrating screen vibrates, the dry powder raw materials on the upper layer are easily lifted up, causing pollution to the workshop environment.

[0006] The purpose and effect of the dry powder fire extinguishing agent filtering device of the utility model are achieved by the following specific technical means:

[0007] A dry powder fire extinguishing agent filtering device, comprising a rotary vibrating screen body, a screening connection cover, a feed hopper, a discharge hopper, a vibration motor, a feed dustproof frame, a feed conveying cylinder, a feed dustproof mechanism and a feed dispersion mechanism;

[0008] The screening connection cover is fixedly connected above the rotary vibrating screen body;

[0009] The feed hopper is fixedly connected to the upper end of the screening connection cover;

[0010] The discharge hopper is fixedly connected to the outside of the rotary vibrating screen body;

[0011] The vibration motors are provided in two groups, and the two groups of vibration motors are respectively fixedly connected to the left and right sides of the rotary vibrating screen body;

[0012] The feed dustproof frame is fixedly connected to the lower end of the screening connection cover;

[0013] The feed conveying cylinder is slidably connected to the inner side of the feed dustproof frame;

[0014] The feeding dust prevention mechanism is arranged below the feeding dust prevention frame;

[0015] The feed dispersion mechanism is arranged at the front lower end of the feed dustproof frame.

[0016] Furthermore, the feeding dust-proof mechanism comprises: a dust-proof connecting piece, a dust-proof driving motor and a dust-proof driving screw;

[0017] The dustproof connector is fixedly connected to the right side of the feed conveying cylinder, and the dustproof connector is provided with a threaded hole structure;

[0018] The dustproof driving motor is fixedly connected to the rear end of the feeding dustproof frame;

[0019] The dustproof driving screw is a reciprocating screw structure, the dustproof driving screw is rotatably connected to the inner side of the feeding dustproof frame, the dustproof driving screw is threadedly connected to the dustproof connecting piece, and the dustproof driving screw is coaxially fixedly connected to the front end of the rotating shaft of the dustproof driving motor.

[0020] Furthermore, the feed dust prevention mechanism also includes: a dust prevention limit plate and a dust prevention shielding cover;

[0021] The dustproof limit plate is fixedly connected to the lower front end of the feeding dustproof frame;

[0022] The dustproof shielding cover is hinged at the bottom of the feed conveying cylinder, and the dustproof shielding cover is overlapped at the top of the dustproof limiting plate.

[0023] Furthermore, the feed dispersion mechanism includes: a dispersion connecting rod, a dispersion driving member, a dispersion disk and a dispersion driving gear;

[0024] The dispersion connecting rod is slidably connected to the right side of the feed dustproof frame, and the dispersion connecting rod is fixedly connected to the right side of the feed conveying cylinder;

[0025] The decentralized driving member is fixedly connected to the lower front end of the decentralized connecting rod, and a rack structure is provided at the front end of the decentralized driving member;

[0026] The dispersion disk is rotatably connected to the lower front end of the feeding dustproof frame;

[0027] The dispersion driving gear is coaxially fixedly connected to the upper end of the dispersion disk.

[0028] Furthermore, the feed dispersion mechanism also includes: a dispersion drive ratchet;

[0029] The decentralized driving ratchet is coaxially fixedly connected to the upper end of the decentralized driving gear.

[0030] Furthermore, the feed dispersion mechanism also includes: a dispersion return spring;

[0031] The dispersion return spring is a scroll spring structure, and the dispersion return spring is fixedly connected to the upper end of the dispersion drive ratchet.

[0032] Compared with the prior art, the utility model has the following beneficial effects:

[0033] The utility model sets the feeding dust prevention mechanism, the dry powder inside the feed hopper enters the interior of the feed conveying cylinder, the dust prevention driving motor is turned on, the rotating shaft of the dust prevention driving motor drives the dust prevention driving screw to rotate, the rotation of the dust prevention driving screw drives the dust prevention connecting piece to move forward and backward, the movement of the dust prevention connecting piece drives the feed conveying cylinder to move forward and backward, when the feed conveying cylinder moves forward to the front end of the dust prevention limit plate, at this time, the dust prevention limit plate no longer blocks the dust prevention shielding cover, the dust prevention shielding cover opens under the action of its own weight, at this time the raw materials inside the feed conveying cylinder enter the interior of the rotary vibrating screen body for screening, and at the same time when the feed conveying cylinder moves backward, the dust prevention shielding cover moves backward to shield the feed conveying cylinder, thus avoiding the dry powder raw materials from running out during vibration filtration, avoiding the generation of more dust during filtration, and ensuring the cleanliness of the working environment.

[0034] The utility model adopts the setting of the feed dispersion mechanism, when the feed conveying cylinder moves forward, the feed conveying cylinder moves forward and drives the dispersion connecting rod to move forward, the dispersion connecting rod moves forward and drives the dispersion driving gear to rotate, the dispersion driving gear rotates and drives the dispersion driving ratchet to rotate, at this time the dispersion driving ratchet is in a matched state, and the rotation of the dispersion driving ratchet realizes the charging of the dispersion reset spring, and when the dispersion driving part moves past the dispersion driving gear position, the dispersion disk is reversed under the action of the dispersion reset spring, and the dispersion disk is driven to rotate to throw the material above the dispersion disk into the interior of the rotary vibrating screen body, thereby ensuring the uniform distribution of the dry powder raw material and improving the filtration efficiency of the dry powder raw material. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0036] Figure 2It is a schematic diagram of the structure of the feed hopper of the utility model.

[0037] Figure 3 It is a schematic diagram of the structure of the feeding dust prevention mechanism of the utility model.

[0038] Figure 4 It is a schematic diagram of the structure of the dispersion disk of the utility model.

[0039] Figure 5 It is a schematic diagram of the structure of the feed dispersion mechanism of the utility model.

[0040] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0041] 1. Vibrating screen body; 101. Dust-proof connector; 102. Dust-proof drive motor; 103. Dust-proof drive screw; 104. Dust-proof limit plate; 105. Dust-proof shielding cover; 2. Screening connection cover; 201. Dispersion connecting rod; 202. Dispersion drive member; 203. Dispersion disk; 204. Dispersion drive gear; 205. Dispersion drive ratchet; 206. Dispersion reset spring; 3. Feed hopper; 4. Discharge hopper; 5. Vibration motor; 6. Feed dust-proof frame; 7. Feed conveyor cylinder. DETAILED DESCRIPTION

[0042] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.

[0043] Embodiment 1:

[0044] As attached Figure 1 To Attachment Figure 5 As shown:

[0045] The utility model provides a dry powder fire extinguishing agent filtering device, comprising a rotary vibrating screen body 1, a screening connection cover 2, a feed hopper 3, a discharge hopper 4, a vibration motor 5, a feed dustproof frame 6, a feed conveying cylinder 7 and a feed dustproof mechanism;

[0046] The screening connection cover 2 is fixedly connected to the upper part of the rotary vibrating screen body 1;

[0047] The feed hopper 3 is fixedly connected to the upper end of the screening connection cover 2;

[0048] The discharge hopper 4 is fixedly connected to the outer side of the rotary vibrating screen body 1;

[0049] There are two sets of vibration motors 5, which are respectively fixedly connected to the left and right sides of the rotary vibrating screen body 1;

[0050] The feed dustproof frame 6 is fixedly connected to the lower end of the screening connection cover 2;

[0051] The feed conveying cylinder 7 is slidably connected to the inner side of the feed dustproof frame 6;

[0052] The feeding dust prevention mechanism is arranged below the feeding dust prevention frame 6 .

[0053] The feeding dust prevention mechanism includes: a dust prevention connector 101, a dust prevention driving motor 102, a dust prevention driving screw 103, a dust prevention limit plate 104 and a dust prevention shielding cover 105;

[0054] The dustproof connector 101 is fixedly connected to the right side of the feed conveying cylinder 7, and the dustproof connector 101 is provided with a threaded hole structure;

[0055] The dustproof driving motor 102 is fixedly connected to the rear end of the feeding dustproof frame 6;

[0056] The dustproof driving screw 103 is a reciprocating screw structure, the dustproof driving screw 103 is rotatably connected to the inner side of the feeding dustproof frame 6, the dustproof driving screw 103 is threadedly connected to the dustproof connecting piece 101, and the dustproof driving screw 103 is coaxially fixedly connected to the front end of the rotating shaft of the dustproof driving motor 102;

[0057] The dustproof limit plate 104 is fixedly connected to the lower front end of the feed dustproof frame 6;

[0058] The dustproof shielding cover 105 is hinged at the bottom of the feed conveying cylinder 7 , and the dustproof shielding cover 105 is overlapped at the top of the dustproof limiting plate 104 .

[0059] When the material is in the feed hopper 3, the dustproof cover 105 is opened and the material is screened by the feed conveyor 7. At the same time, when the material is in the feed hopper 3, the dustproof cover 105 is opened and the material is screened by the feed conveyor 7.

[0060] Embodiment 2:

[0061] The utility model provides a dry powder fire extinguishing agent filtering device, based on the first embodiment, such as Figures 1 to 5 As shown, it also includes a feed dispersion mechanism, which is arranged at the front lower end of the feed dustproof frame 6.

[0062] The feed dispersion mechanism includes: a dispersion connecting rod 201, a dispersion driving member 202, a dispersion disk 203, a dispersion driving gear 204, a dispersion driving ratchet 205 and a dispersion reset spring 206;

[0063] The dispersion connecting rod 201 is slidably connected to the right side of the feeding dustproof frame 6, and the dispersion connecting rod 201 is fixedly connected to the right side of the feeding conveying cylinder 7;

[0064] The decentralized driving member 202 is fixedly connected to the lower front end of the decentralized connecting rod 201, and a rack structure is provided at the front end of the decentralized driving member 202;

[0065] The dispersion plate 203 is rotatably connected to the lower front end of the feeding dustproof frame 6;

[0066] The dispersion driving gear 204 is coaxially fixedly connected to the upper end of the dispersion disk 203;

[0067] The decentralized driving ratchet 205 is coaxially fixedly connected to the upper end of the decentralized driving gear 204;

[0068] The dispersion return spring 206 is a scroll spring structure, and the dispersion return spring 206 is fixedly connected to the upper end of the dispersion drive ratchet 205 .

[0069] During use, when the feed conveying cylinder 7 moves forward, the feed conveying cylinder 7 moves forward, driving the dispersion connecting rod 201 to move forward, and the dispersion connecting rod 201 moves forward to drive the dispersion driving gear 204 to rotate, and the rotation of the dispersion driving gear 204 drives the dispersion driving ratchet 205 to rotate. At this time, the dispersion driving ratchet 205 is in a mating state, and the rotation of the dispersion driving ratchet 205 realizes the charging of the dispersion reset spring 206. When the dispersion driving member 202 moves past the position of the dispersion driving gear 204, the dispersion disk 203 reverses under the action of the dispersion reset spring 206, and the dispersion disk 203 is driven to rotate to throw the material above the dispersion disk 203 into the interior of the vibrating screen body 1, thereby ensuring the uniform distribution of the dry powder raw material and improving the filtration efficiency of the dry powder raw material.

Claims

1. A dry powder fire extinguishing agent filtering device, characterized in that: The invention comprises a rotary vibrating screen body (1), a screening connection cover (2), a feed hopper (3), a discharge hopper (4), a vibration motor (5), a feed dustproof frame (6), a feed conveying cylinder (7), a feed dustproof mechanism and a feed dispersion mechanism; the screening connection cover (2) is fixedly connected to the top of the rotary vibrating screen body (1); the feed hopper (3) is fixedly connected to the upper end of the screening connection cover (2); the discharge hopper (4) is fixedly connected to the outer side of the rotary vibrating screen body (1); two groups of vibration motors (5) are arranged, and the two groups of vibration motors (5) are respectively fixedly connected to the left and right sides of the rotary vibrating screen body (1); the feed dustproof frame (6) is fixedly connected to the lower end of the screening connection cover (2); the feed conveying cylinder (7) is slidably connected to the inner side of the feed dustproof frame (6); the feed dustproof mechanism is arranged below the feed dustproof frame (6); and the feed dispersion mechanism is arranged at the front lower end of the feed dustproof frame (6).

2. A dry powder fire extinguishing agent filtering device as claimed in claim 1, characterized in that: The feeding dustproof mechanism comprises: a dustproof connecting piece (101), a dustproof driving motor (102) and a dustproof driving screw (103); the dustproof connecting piece (101) is fixedly connected to the right side of the feeding conveying cylinder (7), and the dustproof connecting piece (101) is provided with a threaded hole structure; the dustproof driving motor (102) is fixedly connected to the rear end of the feeding dustproof frame (6); the dustproof driving screw (103) is a reciprocating screw structure, the dustproof driving screw (103) is rotatably connected to the inner side of the feeding dustproof frame (6), the dustproof driving screw (103) is threadedly connected to the dustproof connecting piece (101), and the dustproof driving screw (103) is coaxially fixedly connected to the front end of the rotating shaft of the dustproof driving motor (102).

3. A dry powder fire extinguishing agent filtering device as claimed in claim 2, characterized in that: The feed dust prevention mechanism further comprises: a dust prevention limit plate (104) and a dust prevention shielding cover (105); the dust prevention limit plate (104) is fixedly connected to the lower front end of the feed dust prevention frame (6); the dust prevention shielding cover (105) is hinged at the lower part of the feed conveying cylinder (7), and the dust prevention shielding cover (105) is overlapped on the upper part of the dust prevention limit plate (104).

4. A dry powder fire extinguishing agent filtering device as claimed in claim 1, characterized in that: The feed dispersion mechanism comprises: a dispersion connecting rod (201), a dispersion driving member (202), a dispersion disk (203) and a dispersion driving gear (204); the dispersion connecting rod (201) is slidably connected to the right side of the feed dustproof frame (6), and the dispersion connecting rod (201) is fixedly connected to the right side of the feed conveying cylinder (7); the dispersion driving member (202) is fixedly connected to the lower front end of the dispersion connecting rod (201), and the front end of the dispersion driving member (202) is provided with a rack structure; the dispersion disk (203) is rotationally connected to the lower front end of the feed dustproof frame (6); and the dispersion driving gear (204) is coaxially fixedly connected to the upper end of the dispersion disk (203).

5. A dry powder fire extinguishing agent filtering device as claimed in claim 4, characterized in that: The feed dispersion mechanism further comprises: a dispersion drive ratchet (205); the dispersion drive ratchet (205) is coaxially fixedly connected to the upper end of the dispersion drive gear (204).

6. A dry powder fire extinguishing agent filtering device as claimed in claim 5, characterized in that: The feed dispersion mechanism further comprises: a dispersion reset spring (206); the dispersion reset spring (206) is a spiral spring structure, and the dispersion reset spring (206) is fixedly connected to the upper end of the dispersion drive ratchet (205).

Images