Chemical raw material storage ventilation cabinet

Abstract

The utility model provides a chemical raw material storage ventilation cabinet which comprises a cabinet body, a cabinet door is arranged on the front face of the cabinet body, a partition plate is fixedly connected in the cabinet body, a fan is arranged on the partition plate, a secondary filter screen is arranged on the partition plate, air inlet holes are formed in the two sides of the cabinet body, and primary filter screens are arranged in the air inlet holes. The chemical raw material storage cabinet has the advantages that the fan drives gas to flow, external gas enters the cabinet body after being filtered by the first-stage filter screen and the second-stage filter screen from the air inlet holes, gas in the cabinet body is exhausted through the air outlet box and the air outlet holes, and a proper storage environment is provided for chemical raw materials. And meanwhile, the cleaning plate is driven by airflow to rotate, and then the reciprocating lead screw is driven to rotate. And the sliding block reciprocates on the reciprocating screw rod, so that the insertion rod is inserted into a filter hole of the primary filter screen, and impurities clamped in the insertion rod are pushed out, so that the impurities are scraped by the cleaning plate. And in the ventilation process, dust on the filter screen is cleaned, the ventilation effect is guaranteed, and storage of chemical raw materials is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical raw material storage, in particular to a chemical raw material storage fume hood. Background Art

[0002] Chemical raw materials are the raw materials used in the chemical industry to manufacture various chemicals. They come in a wide variety of types and have a wide range of uses. The storage and transportation of chemical raw materials require special attention to safety. Most chemical raw materials are flammable, explosive, toxic, and hazardous. Therefore, they must be stored in a cool, well-ventilated, dry place, away from fire and heat sources.

[0003] To provide a dry and ventilated storage environment for chemical raw materials, existing chemical raw material storage cabinets often feature exhaust vents on both sides of the cabinet. This presents a dust control issue, and filters are therefore installed on the vents to isolate dust and impurities. However, after prolonged use, external dust and impurities can adhere to the vents, affecting the ventilation efficiency and, in turn, the storage of chemical raw materials. Therefore, an improved chemical raw material storage fume hood is proposed. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] To this end, one purpose of the present invention is to provide a chemical raw material storage fume hood to solve the problems mentioned in the background technology and overcome the shortcomings of the existing technology.

[0006] In order to achieve the above-mentioned object, an embodiment of one aspect of the present invention provides a chemical raw material storage fume hood, comprising a cabinet body, a cabinet door is provided on the front of the cabinet body, a partition is fixedly connected to the cabinet body, a fan is provided on the partition, and a secondary filter is provided on the partition;

[0007] Air inlet holes are provided on both sides of the cabinet body and a first-level filter is arranged in the air inlet holes. The middle part of the first-level filter is rotatably connected to a reciprocating screw rod, and both ends of the reciprocating screw rod are fixedly connected to obliquely arranged cleaning plates. A slider is threadedly connected to the reciprocating screw rod, and a limiting slot is provided at the bottom of the cabinet body. The bottom end of the slider is fixedly connected to a limiting rod, and the bottom end of the limiting rod is fixedly connected to a limiting block arranged in the limiting slot. A number of plug rods are fixedly connected to the slider, and the top of the cabinet body is fixedly connected to an air outlet box, and the bottom end of the air outlet box is provided with an air outlet and an exhaust filter is arranged in the air outlet.

[0008] Preferably, any of the above solutions is provided with an anti-slip pad on the bottom surface of the cabinet body, and a handle is provided on the cabinet door.

[0009] Preferably, any of the above solutions is that the partition is arranged at the lower part of the cabinet, and the fan and the secondary filter are both arranged in the middle part of the partition.

[0010] The above technical solution adopts the following: the cabinet provides storage space for chemical raw materials, and a placement board can be installed inside it to provide a placement platform for chemical raw materials. It should be noted that the placement board cannot completely block the flow of gas in the cabinet. The installation of anti-slip mats on the bottom of the cabinet can improve the stability of the cabinet. The installation of cabinet doors makes it convenient for staff to take and put chemical raw materials. Partitions divide the space inside the cabinet, with the upper part used to store chemical raw materials and the lower part providing installation space for related components. Fans are used to drive gas flow, so that air circulates inside and outside the cabinet, providing a ventilated storage environment for chemical raw materials. The secondary filter is used to filter the incoming air for a second time, further reducing the impact of dust in the gas on the chemical raw materials.

[0011] Preferably, any of the above schemes is that the reciprocating screw is rotatably connected to the primary filter screen via a mounting ring, and there are a plurality of cleaning plates that are evenly arranged at both ends of the reciprocating screw.

[0012] Preferably, from any of the above solutions, the sliding block adopts a circular structure, a restraining rod is fixedly connected in the limiting groove, and the limiting block is sleeved on the outside of the restraining rod.

[0013] The above technical solution is adopted: the first-level filter is used to filter the gas entering the cabinet from the air inlet and to block the dust, impurities, etc. in the gas. The reciprocating screw is used to drive the slider to move horizontally. With the reciprocating screw, the slider will continue to move in the opposite direction when it moves to the end of the reciprocating screw, so that the reciprocating movement of the slider can be achieved. The cleaning plate is used to scrape off dust, impurities, etc. on the outside of the first-level filter. Its oblique arrangement enables it to rotate under the drive of the airflow, and then drives the reciprocating screw to rotate. The limit groove is used to limit the limit block to prevent the slider from rotating with the reciprocating screw. A constraint rod is set in the limit groove to better constrain the limit block.

[0014] Preferably, any of the above schemes is that a plurality of balls are embedded in the bottom surface of the limit block, and the positions of the plurality of the insertion rods are arranged in a one-to-one correspondence with the mesh holes of the first-level filter screen.

[0015] Preferably, any of the above schemes is provided with an air guide block on the top of the air outlet box, and the exhaust filter is provided on both sides of the cabinet.

[0016] The above technical solution employs a number of ball bearings installed on the bottom surface of the limit block to assist its movement, ensuring smoother slider movement. The slider moves on a reciprocating screw, driving the plunger to insert into the pores of the primary filter, dislodging trapped impurities for removal by the cleaning plate. The air outlet box provides a mounting platform for the exhaust filter and redirects the airflow downward. Exhaust air flows downward, preventing external dust from entering the cabinet through the exhaust vents. The exhaust filter blocks external dust, enhancing dust protection.

[0017] Compared with the prior art, the advantages and beneficial effects of the present invention are as follows:

[0018] This chemical raw material storage fume hood is equipped with a primary filter, a reciprocating screw, a cleaning plate, a slider, and a plug. During use, the fan is turned on to drive air flow. External air enters the cabinet through the air inlet, filtered through the primary and secondary filters, and then discharged through the air box and outlet, providing a suitable storage environment for chemical raw materials. Simultaneously, the cleaning plate rotates, driven by the airflow, which in turn drives the reciprocating screw. The slider reciprocates on the reciprocating screw, allowing the plug to penetrate the pores of the primary filter, pushing out trapped impurities for removal by the cleaning plate. During the ventilation process, dust on the filter is removed, ensuring effective ventilation and facilitating the storage of chemical raw materials.

[0019] 2. This chemical raw material storage fume hood features an anti-slip mat on the bottom to improve cabinet stability. A secondary filter provides secondary filtration of incoming air, further reducing the impact of dust in the air on chemical raw materials. Restraining rods are installed within the limit slots to better constrain the limit blocks. Ball bearings are installed on the bottom of the limit blocks to assist in movement, ensuring smoother movement of the sliders. Exhaust air flows out from below, preventing external dust from entering the cabinet through the exhaust vents. The exhaust filter blocks external dust, enhancing dust protection.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the cutaway structure of the present utility model;

[0024] Figure 3 This is a schematic structural diagram of a local structure of the present invention from a first perspective;

[0025] Figure 4 This is a schematic structural diagram of the local structure of the utility model from a second perspective.

[0026] In the figure: 1-cabinet body, 2-cabinet door, 3-partition, 4-fan, 5-secondary filter, 6-primary filter, 7-reciprocating screw, 8-cleaning plate, 9-slider, 10-limiting groove, 11-limiting rod, 12-limiting block, 13-insertion rod, 14-air outlet box, 15-exhaust filter. DETAILED DESCRIPTION

[0027] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0028] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0029] like Figures 1 to 4 As shown, the utility model comprises a cabinet body 1, a cabinet door 2 is provided on the front of the cabinet body 1, a partition 3 is fixedly connected to the cabinet body 1, a fan 4 is provided on the partition 3, and a secondary filter 5 is provided on the partition 3;

[0030] Air inlet holes are provided on both sides of the cabinet body 1 and a first-level filter 6 is arranged in the air inlet holes. The middle part of the first-level filter 6 is rotatably connected to a reciprocating screw rod 7, and both ends of the reciprocating screw rod 7 are fixedly connected to obliquely arranged cleaning plates 8. A slider 9 is threadedly connected to the reciprocating screw rod 7. A limiting groove 10 is provided at the bottom of the cabinet body 1, and the bottom end of the slider 9 is fixedly connected to a limiting rod 11. The bottom end of the limiting rod 11 is fixedly connected to a limiting block 12 arranged in the limiting groove 10. A number of plug rods 13 are fixedly connected to the slider 9. The top of the cabinet body 1 is fixedly connected to an air outlet box 14, and an air outlet hole is provided at the bottom end of the air outlet box 14 and an exhaust filter 15 is arranged in the air outlet hole.

[0031] Example 1: The bottom surface of the cabinet 1 is provided with an anti-slip mat, and the cabinet door 2 is provided with a handle. The partition 3 is provided at the lower part of the cabinet 1, and the fan 4 and the secondary filter 5 are both provided in the middle of the partition 3. The cabinet 1 provides storage space for chemical raw materials, and a placement board can be provided therein to provide a placement platform for the chemical raw materials. It should be noted that the placement board cannot completely block the flow of gas within the cabinet 1. The provision of an anti-slip mat on the bottom surface of the cabinet 1 can improve the stability of the cabinet 1. The provision of the cabinet door 2 makes it convenient for staff to take and put chemical raw materials. The partition 3 divides the space within the cabinet 1, with the upper part being used to store chemical raw materials and the lower part providing installation space for related components. The fan 4 is used to drive the gas flow, so that air circulation is formed inside and outside the cabinet 1, providing a ventilated storage environment for the chemical raw materials. The secondary filter 5 is used to perform secondary filtration on the incoming air, further reducing the impact of dust in the gas on the chemical raw materials.

[0032] Example 2: The reciprocating screw 7 is rotatably connected to the primary filter 6 via a mounting ring. Several cleaning plates 8 are evenly spaced around the circumference of the reciprocating screw 7. The slider 9 is circular in structure, with a restraining rod fixedly connected within the limiting groove 10. The limiting block 12 is sleeved onto the outside of the restraining rod. The primary filter 6 is used to filter the air entering the cabinet 1 through the air inlet, blocking dust and impurities within the air. The reciprocating screw 7 drives the slider 9 for horizontal displacement. With the reciprocating screw, the slider 9 continues to move in the opposite direction when it reaches the end of the reciprocating screw 7, thus achieving reciprocating motion of the slider 9. The cleaning plates 8 scrape dust and impurities from the outside of the primary filter 6. Their oblique arrangement allows them to rotate under the influence of the airflow, thereby driving the reciprocating screw 7. The limiting groove 10 limits the limiting block 12, preventing the slider 9 from rotating with the reciprocating screw 7. A restraining rod is provided in the limiting groove 10 to better restrain the limiting block 12 .

[0033] Embodiment 3: A plurality of ball bearings are embedded in the bottom surface of the limit block 12, and the positions of the plurality of insertion rods 13 are arranged in a one-to-one correspondence with the mesh holes of the primary filter 6. An air guide block is provided on the top of the air outlet box 14, and the exhaust filter 15 is provided on both sides of the cabinet 1. A plurality of ball bearings are provided on the bottom surface of the limit block 12 to assist the limit block 12 in moving, so that the slider 9 moves more smoothly. The slider 9 moves on the reciprocating screw 7, which can drive the insertion rod 13 to move, so that the insertion rod 13 is inserted into the filter holes of the primary filter 6, pushing out the impurities stuck therein so that the cleaning plate 8 can scrape them off. The air outlet box 14 provides an installation platform for the exhaust filter 15 and also deflects the airflow so that the airflow moves downward. The exhaust air flows out from below, which can prevent external dust from entering the cabinet 1 through the exhaust hole. The exhaust filter 15 can block external dust and improve the dustproof effect.

[0034] The working principle of this utility model is as follows:

[0035] S1. Place chemical raw materials in cabinet 1. Start fan 4 to drive air flow. External air enters cabinet 1 from the air inlet through primary filter 6 and secondary filter 5 after being filtered. The air in cabinet 1 is discharged through air outlet box 14 and air outlet, providing a suitable storage environment for chemical raw materials.

[0036] S2, the cleaning plate 8 is driven by the airflow to rotate, which in turn drives the reciprocating screw 7 to rotate. The slider 9 moves back and forth on the reciprocating screw 7, so that the insertion rod 13 is inserted into the filter hole of the primary filter 6, pushing out the impurities stuck therein. The cleaning plate 8 scrapes off the impurities on the primary filter 6 during the rotation process to ensure the ventilation effect.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] 1. The chemical raw material storage fume hood is equipped with components such as a first-level filter 6, a reciprocating screw 7, a cleaning plate 8, a slider 9, and an insert rod 13. When in use, the fan 4 is started to drive the gas flow. The external gas enters the cabinet 1 after being filtered through the first-level filter 6 and the second-level filter 5 from the air inlet. The gas in the cabinet 1 is discharged through the air outlet box 14 and the air outlet, providing a suitable storage environment for chemical raw materials. At the same time, the cleaning plate 8 is driven by the air flow to rotate, and then drives the reciprocating screw 7 to rotate. The slider 9 moves back and forth on the reciprocating screw 7, so that the insert rod 13 is inserted into the filter hole of the first-level filter 6, pushing out the impurities stuck therein so that the cleaning plate 8 can scrape them off. During the ventilation process, the dust on the filter is cleaned, ensuring the ventilation effect, which is beneficial to the storage of chemical raw materials.

[0039] 2. The chemical raw material storage fume hood is provided with an anti-slip mat on the bottom surface of the cabinet body 1 to improve the stability of the cabinet body 1. The secondary filter 5 can perform secondary filtration on the incoming air, further reducing the impact of dust in the gas on the chemical raw materials. A constraint rod is provided in the limit groove 10 to better constrain the limit block 12. A number of ball bearings are provided on the bottom surface of the limit block 12 to assist the limit block 12 in moving, so that the slider 9 moves more smoothly. The exhaust air flows out from the bottom to prevent external dust from entering the cabinet body 1 from the exhaust hole. The exhaust filter 15 can block external dust and improve the dustproof effect.

Claims

1. A chemical raw material storage fume hood, comprising a cabinet body (1), wherein a cabinet door (2) is provided on the front of the cabinet body (1); characterized in that: A partition (3) is fixedly connected to the cabinet (1), a fan (4) is provided on the partition (3), and a secondary filter (5) is provided on the partition (3); Air inlet holes are provided on both sides of the cabinet (1) and a first-level filter (6) is provided in the air inlet holes. A reciprocating screw (7) is rotatably connected to the middle of the first-level filter (6). Both ends of the reciprocating screw (7) are fixedly connected to cleaning plates (8) arranged obliquely. A slider (9) is threadedly connected to the reciprocating screw (7). A limiting groove (10) is provided at the bottom of the cabinet (1). The bottom end of the slider (9) is fixedly connected to a limiting rod (11). The bottom end of the limiting rod (11) is fixedly connected to a limiting block (12) arranged in the limiting groove (10). A plurality of plug rods (13) are fixedly connected to the slider (9). An air outlet box (14) is fixedly connected to the top of the cabinet (1). An air outlet hole is provided at the bottom end of the air outlet box (14) and an exhaust filter (15) is provided in the air outlet hole.

2. A chemical raw material storage fume hood according to claim 1, characterized in that: The bottom surface of the cabinet body (1) is provided with an anti-slip pad, and the cabinet door (2) is provided with a handle.

3. A chemical raw material storage fume hood according to claim 2, characterized in that: The partition (3) is arranged at the lower part of the cabinet (1), and the fan (4) and the secondary filter (5) are both arranged in the middle part of the partition (3).

4. A chemical raw material storage fume hood according to claim 3, characterized in that: The reciprocating screw rod (7) is rotatably connected to the primary filter screen (6) via a mounting ring, and a plurality of cleaning plates (8) are evenly arranged on the circumference at both ends of the reciprocating screw rod (7).

5. A chemical raw material storage fume hood according to claim 4, characterized in that: The slider (9) adopts a circular structure, a constraint rod is fixedly connected in the limiting groove (10), and the limiting block (12) is sleeved on the outside of the constraint rod.

6. A chemical raw material storage fume hood according to claim 5, characterized in that: A plurality of balls are embedded in the bottom surface of the limit block (12), and the positions of the plurality of insertion rods (13) are arranged in a one-to-one correspondence with the meshes of the primary filter screen (6).

7. A chemical raw material storage fume hood according to claim 6, characterized in that: An air guide block is provided on the top of the air outlet box (14), and the exhaust filter (15) is provided on both sides of the cabinet (1).

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