Dust falling device for preparing dried sand

Abstract

The utility model discloses a dust falling device for preparing dried sand, which comprises a box body, an air inlet pipe is mounted on one side of the box body, an air inlet cover with a downward port is mounted at the top end of the air inlet pipe, a primary filtering structure is mounted in the air inlet pipe, a fan is mounted on the other side of the box body, and an exhaust cylinder is mounted at the air outlet end of the fan. A baffle is installed in the box body and located on one side of the air inlet pipe to form an upward air outlet channel, and a secondary filtering structure is installed between the baffle and the inner wall of the box body and located on one side of the draught fan. According to the dust falling device for preparing the dried sand, through the multi-stage filtering design, the following effects are achieved: dust emission is controlled, a large amount of dust is generated in the sand drying and machining process, the dust can be effectively captured through the multi-stage filtering design, and pollution to the environment is reduced; and the working environment is improved: dust in a working place is removed, and the working environment of operators can be improved through multi-stage filtration.

Description

Technical Field

[0001] The utility model relates to the technical field of drying sand preparation, in particular to a dust reduction device used for drying sand preparation. Background Art

[0002] The preparation of dried sand plays a key role in many industrial fields, especially in the construction, ceramics, casting and glass manufacturing industries. In the construction field, dried sand, as an important component of concrete and mortar, can improve the strength and durability of the project; in the ceramic industry, dry sand ensures the finish and stability of the finished product; in the casting process, dried sand is used to make molds to improve the precision and surface quality of castings; in glass manufacturing, dried sand is used as a raw material to determine the transparency and strength of the finished product. The drying process not only removes moisture, but also optimizes the physical and chemical properties of the sand, thereby meeting the needs of various industries for high-performance raw materials.

[0003] In order to better prepare dried sand, a dust removal and dust reduction device is indispensable in the workshop. The existing dust reduction device only filters through a filter screen, and the dust reduction capacity is limited. Incomplete dust reduction will cause dust in the air to affect the service life of production equipment and bring hidden dangers to the health of employees. In addition, if the sand and dust in the air are properly recovered, it will also have a certain effect of recycling materials and reduce the production cost of the production unit. Therefore, a dust reduction device for preparing dried sand is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a dust reduction device for preparing dried sand, which solves the problems of incomplete dust removal and improper material recovery in the prior art.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a dust reduction device for preparing dried sand, comprising a box body, an air inlet pipe is installed on one side of the box body, an air inlet hood with a downward port is installed on the top of the air inlet pipe, a primary filtering structure is installed in the air inlet pipe, a fan is installed on the other side of the box body, an exhaust pipe is installed on the air outlet end of the fan, a baffle is installed in the box body, an upward air outlet channel is formed between the side of the baffle close to the air inlet pipe and the box body, and a secondary filtering structure is installed between the side of the baffle close to the fan and the inner wall of the box body.

[0006] Preferably, the air inlet pipe is in an "L" shape.

[0007] Preferably, the primary filtering structure includes a plurality of placement grooves opened on the inner wall of the lower side of the air inlet pipe, the placement grooves are square in shape, a metal filter is installed in the placement grooves, a through opening for pulling out the metal filter is opened at the bottom of the placement groove, a cover plate is hinged on the lower side of the placement groove and at the through opening, and a buckle is provided between the cover plate and the outer wall of the placement groove.

[0008] Preferably, the secondary filtering structure comprises a base plate, the base plate is arranged between the baffle and the inner wall of the box body, a plurality of downward conical grooves are formed on the base plate, and bag filters are inserted into the conical grooves.

[0009] Preferably, an internal thread is provided on the inner annular surface of the bottom of the conical groove, the top of the bag-type filter passes through the box, a sleeve is provided between the top of the bag-type filter and the box, the sleeve is fixedly connected to the box, the inner wall of the sleeve is also provided with an internal thread, and external threads are provided on the top and bottom outer annular surfaces of the bag-type filter, and the bag-type filter is spirally connected to the sleeve and the conical groove, respectively.

[0010] Preferably, the exhaust cylinder includes a cylinder body, the air outlet end of the cylinder body faces upward, a conical cover is installed on the air outlet end of the cylinder body, an ash collecting trough is inserted at the bottom of the cylinder body, the ash collecting trough is embedded with the outer wall of the cylinder body, the air outlet height of the fan is higher than the ash collecting trough, and a plurality of baffles are cross-installed inside the cylinder body, and the baffles are arranged to be inclined upward.

[0011] Beneficial Effects

[0012] The utility model provides a dust reduction device for preparing dried sand. It has the following beneficial effects: The dust reduction device for preparing dried sand achieves the following effects through a multi-stage filtration design:

[0013] Control dust emission: A large amount of dust is generated during the drying and processing of sand. The multi-stage filtration design can effectively capture the dust, reduce pollution to the environment, and meet environmental protection requirements.

[0014] Improved working environment: By removing dust from the workplace, multi-stage filtration can improve the working environment of operators and reduce health risks.

[0015] Improve equipment efficiency: A clean environment helps improve the operating efficiency of drying equipment, reduce equipment wear and failure, and thus extend the service life of the equipment.

[0016] Recycled materials: realize dust recovery, reduce raw material loss and improve resource utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a structural schematic diagram of the utility model.

[0018] Figure 2 This is a schematic diagram of the structure of point A of the present utility model.

[0019] Figure 3 This is a schematic diagram of the structure of point B of the present utility model.

[0020] In the figure: 1. box body; 2. air inlet pipe; 3. air inlet cover; 4. fan; 5. baffle; 6. metal filter; 7. cover plate; 8. base plate; 9. bag filter; 10. sleeve; 11. cylinder body; 12. ash collecting trough; 13. baffle. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] All electrical components in this case are connected to their corresponding power supplies through wires by personnel in this field, and a suitable controller should be selected according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working sequence between the electrical components in the following working principle to complete the electrical connection. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and no longer explains the electrical control.

[0023] See also Figure 1-3 The utility model provides a technical solution: a dust reduction device for preparing dried sand, comprising a box body 1, an air inlet pipe 2 is installed on one side of the box body 1, an air inlet cover 3 with a downward port is installed on the top of the air inlet pipe 2, a primary filtering structure is installed in the air inlet pipe 2, a fan 4 is installed on the other side of the box body 1, an exhaust pipe is installed on the air outlet end of the fan 4, a baffle 5 is installed in the box body 1, an upward air outlet channel is formed between the side of the baffle 5 close to the air inlet pipe 2 and the box body 1, and a secondary filtering structure is installed between the side of the baffle 5 close to the fan 4 and the inner wall of the box body 1.

[0024] Embodiment 1: The air inlet pipe 2 is in an "L" shape.

[0025] The primary filtering structure includes a plurality of placement grooves provided on the inner wall of the lower side of the air inlet pipe 2, the placement grooves are in a square shape, a metal filter screen 6 is installed in the placement grooves, a through hole for extracting the metal filter screen 6 is provided at the bottom of the placement grooves, a cover plate 7 is hinged at the lower side of the placement grooves and at the through hole, and a buckle is provided between the cover plate 7 and the outer wall of the placement grooves;

[0026] Specifically, the "L"-shaped air inlet pipe 2 design in this embodiment helps to optimize the airflow, so that the airflow entering the box 1 can be fully diffused and effectively filtered when passing through the primary filter structure. The primary filter structure can capture large particles of dust through the combination of the placement slot and the metal filter 6, protecting subsequent equipment from the influence of particulate matter;

[0027] The L-shaped design saves space and allows the device to be more flexibly configured in the production environment.

[0028] The metal filter 6 can withstand high temperature and corrosion, ensuring the stability of the filtration and the long-term use effect.

[0029] The opening design at the bottom of the placement tank makes it easier to clean and replace the metal filter 6, thereby improving the maintenance efficiency of the equipment and making it easier to collect the filtered dust, thereby improving the ability to recycle materials.

[0030] Embodiment 2: The secondary filtering structure comprises a base plate 8, and the base plate 8 is arranged between the baffle plate 5 and the inner wall of the box body 1. The base plate 8 is provided with a plurality of downward conical grooves, and a bag filter 9 is inserted inside the conical grooves.

[0031] An internal thread is provided on the inner annular surface at the bottom of the conical groove, the top of the bag filter 9 passes through the box body 1, a sleeve 10 is provided between the top of the bag filter 9 and the box body 1, the sleeve 10 is fixedly connected to the box body 1, the inner wall of the sleeve 10 is also provided with an internal thread, and external threads are provided on the top and bottom outer annular surfaces of the bag filter 9, and the bag filter 9 is respectively spirally connected to the sleeve 10 and the conical groove;

[0032] Specifically, this embodiment further improves the dust removal effect through the conical groove of the secondary filtering structure and the bag filter 9. The conical groove design enables the airflow to form a good flow pattern when passing through the bag filter 9, enhances the filtering efficiency, and ensures the removal of tiny particles.

[0033] The bag filter 9 has a strong ability to capture fine particles and can significantly reduce the emission concentration.

[0034] The sleeve 10 and threaded connection in the design simplify the filter replacement process and reduce downtime.

[0035] The design of the conical groove effectively guides the airflow, making the airflow distribution of the entire system more uniform, improving work efficiency, and when the bag filter 9 is disassembled, a part of the material will be collected by the conical groove, which is conducive to material recovery.

[0036] Embodiment 3: The exhaust cylinder comprises a cylinder 11, the air outlet end of the cylinder 11 faces upward, a conical cover is installed on the air outlet end of the cylinder 11, an ash collecting groove 12 is inserted at the bottom of the cylinder 11, the ash collecting groove 12 is embedded with the outer wall of the cylinder 11, the air outlet height of the fan 4 is higher than the ash collecting groove 12, and a plurality of baffles 13 are cross-installed inside the cylinder 11, and the baffles 13 are arranged obliquely upward;

[0037] The combined design of the exhaust duct and the dust collecting trough 12 in this embodiment can effectively collect and process the filtered dust. The upward design of the air outlet can prevent dust from flowing back into the working area, and the dust collecting trough 12 is easy to clean regularly to ensure the long-term stable operation of the equipment.

[0038] The cone hood design prevents dust backflow and improves the safety and effectiveness of the system.

[0039] The structure of the dust collecting trough 12 makes dust collection more convenient, reduces the cleaning frequency, and improves production efficiency.

[0040] The internal baffle 13 helps to evenly distribute the airflow, ensuring exhaust efficiency, while enhancing the structural strength of the cylinder 11 and extending its service life. The baffle 13 can further block particles in the air, causing them to fall and be collected without affecting the circulation of the airflow.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust suppression device for preparing dried sand, comprising a housing (1), characterized in that: An air inlet pipe (2) is installed on one side of the box body (1), an air inlet cover (3) with a port facing downward is installed at the top of the air inlet pipe (2), a primary filtering structure is installed in the air inlet pipe (2), a fan (4) is installed on the other side of the box body (1), an exhaust pipe is installed at the air outlet end of the fan (4), a baffle (5) is installed in the box body (1), an upward air outlet channel is formed between the side of the baffle (5) close to the air inlet pipe (2) and the box body (1), and a secondary filtering structure is installed between the side of the baffle (5) close to the fan (4) and the inner wall of the box body (1).

2. A dust suppression device for preparing dried sand according to claim 1, characterized in that: The air inlet pipe (2) is in an "L" shape.

3. A dust suppression device for preparing dried sand according to claim 1, characterized in that: The primary filtering structure comprises a plurality of placement grooves provided on the inner wall of the lower side of the air inlet pipe (2), the placement grooves being square in shape, a metal filter screen (6) being installed in the placement grooves, a through opening for extracting the metal filter screen (6) being provided at the bottom of the placement grooves, a cover plate (7) being hingedly connected to the lower side of the placement grooves and at the through opening, and a buckle being provided between the cover plate (7) and the outer wall of the placement grooves.

4. A dust suppression device for preparing dried sand according to claim 1, characterized in that: The secondary filtering structure comprises a base plate (8), the base plate (8) being arranged between the baffle plate (5) and the inner wall of the box body (1), the base plate (8) being provided with a plurality of downward conical grooves, and a bag filter (9) being inserted into the interior of the conical grooves.

5. A dust suppression device for preparing dried sand according to claim 4, characterized in that: An internal thread is provided on the inner annular surface at the bottom of the conical groove; the top of the bag filter (9) passes through the housing (1); a sleeve (10) is provided between the top of the bag filter (9) and the housing (1); the sleeve (10) is fixedly connected to the housing (1); an internal thread is also provided on the inner wall of the sleeve (10); external threads are provided on the top and bottom outer annular surfaces of the bag filter (9); the bag filter (9) is spirally connected to the sleeve (10) and the conical groove, respectively.

6. A dust suppression device for preparing dried sand according to claim 1, characterized in that: The exhaust cylinder comprises a cylinder (11), the air outlet end of the cylinder (11) faces upward, a conical cover is installed on the air outlet end of the cylinder (11), an ash collecting trough (12) is inserted at the bottom of the cylinder (11), the ash collecting trough (12) is embedded with the outer wall of the cylinder (11), the air outlet height of the fan (4) is higher than the ash collecting trough (12), and a plurality of baffles (13) are cross-installed inside the cylinder (11), and the baffles (13) are arranged to be inclined upward.

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