Mining ventilator
By installing silencers at the air inlet and outlet of the mine ventilation fan, setting sound-absorbing materials inside the casing, and using a low-noise motor and a high-strength, lightweight impeller, the noise problem of the mine ventilation fan has been solved, improving the underground working environment and protecting the health of miners.
Patent Information
- Application Number
- CN202520637094.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-04-07
AI Technical Summary
Traditional mine ventilation fans generate significant noise during operation, affecting the underground working environment and potentially damaging miners' hearing.
Impedance composite silencers are installed at the air inlet and outlet of the mine ventilation fan, and sound-absorbing materials are placed on the inner wall of the casing. Low-noise motors and high-strength lightweight impellers are used, and dust covers are installed at the silencers to prevent dust from entering.
It effectively reduces the noise of ventilation fans, improves the underground working environment, protects miners' health, extends equipment life, and improves operating efficiency.
Smart Images
Figure CN223781744U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a fan technical field especially relates to a mine fan. BACKGROUND
[0002] The mine fan is the key equipment of mine safety production, is used in the air circulation and gas discharge in the mine, ensures that the mine air is fresh, oxygen is sufficient, and removes harmful gas (such as gas, dust etc.), and its design needs to satisfy the requirement of high strength, high reliability and high efficiency, to adapt to the complex work environment of mine.
[0003] The mine fan is the important component of mine ventilation system, its function is to provide fresh air for underground, discharge harmful gas, guarantee the life safety and physical health of miner, however, the traditional mine fan can produce greater noise when working, seriously influence the underground operation environment, and even can cause damage to the hearing of miner, therefore, we propose a mine fan. UTILITY MODEL CONTENT
[0004] In order to overcome the defects of prior art pointed out above, the present inventors have made in-depth research, and after paying a lot of creative labor, the utility model is completed.
[0005] Specifically, the technical problem to be solved by the utility model is to provide a mine fan to solve the technical problem that the current mine fan can produce greater noise when working, seriously influence the underground operation environment, and even can cause damage to the hearing of miner.
[0006] In order to solve the above technical problem, the utility model provides the following technical scheme:
[0007] A mine fan, including frame, casing, motor and impeller, the casing is installed on the frame, the impeller is arranged in the inside of the casing, the motor is connected with the impeller and drives the impeller to rotate, the side of the casing away from the motor has integrally formed air inlet, and the air inlet is communicated with the casing, the top of the casing has integrally formed air outlet, and the air outlet is communicated with the casing, the air inlet and the air outlet are all installed with silencing device.
[0008] The silencing device includes air inlet silencer and air outlet silencer, the air inlet silencer is installed at the air inlet, the air outlet silencer is installed at the air outlet, so as to achieve the purpose of silencing and noise reduction, and then can effectively improve the underground operation environment and guarantee the physical and mental health of miner.
[0009] As an improved technical scheme, the air inlet silencer and the air outlet silencer are both impedance composite silencers, and the air inlet silencer and the air outlet silencer are both internally provided with sound absorbing cotton and a perforated plate, so that the noise generated by airflow can be effectively absorbed.
[0010] As an improved technical scheme, the inner wall of the machine shell is provided with sound absorbing material, and the sound absorbing material is one of sound absorbing cotton, foamed plastic, sound absorbing film and sound absorbing paint, so that the noise reflected in the machine shell can be further absorbed.
[0011] As an improved technical scheme, the motor is a low-noise motor, so that the generation of noise can be further reduced.
[0012] As an improved technical scheme, the impeller is made of high-strength lightweight material and is dynamically balanced, so that the generation of noise can be further reduced.
[0013] As an improved technical scheme, the air inlet silencer and the air outlet silencer are both provided with an annular clamping groove at one end away from the machine shell, and a detachable dust cover is arranged in the annular clamping groove, so that dust and foreign matters can be prevented from entering the ventilator, and the ventilator can be protected from the influence of the external environment, so that the service life of the ventilator is prolonged and the operation efficiency is improved.
[0014] As an improved technical scheme, the dust cover is provided with a clamping sleeve integrally formed and corresponding to the annular clamping groove, and the clamping sleeve is matched with the annular clamping groove, and the dust cover is installed on the air inlet silencer and the air outlet silencer through the clamping sleeve and the annular clamping groove, so that the dust cover can be clamped and installed on the air inlet silencer and the air outlet silencer through the clamping sleeve and the annular clamping groove, and the dust cover can play the roles of dust prevention, equipment protection, maintenance and cleaning and ventilation efficiency improvement.
[0015] After the above technical scheme is adopted, the beneficial effects of the ventilator are as follows:
[0016] 1. The ventilator is provided with sound absorbing devices at the air inlet and the air outlet, and sound absorbing material is arranged on the inner wall of the machine shell, so that the noise generated when the ventilator works is effectively reduced, and the generation of noise is further reduced by using a low-noise motor and a high-strength lightweight impeller.
[0017] 2. The dust cover is arranged at the air inlet silencer and the air outlet silencer, so that dust and foreign matters can be prevented from entering the ventilator, and the ventilator can be protected from the influence of the external environment, so that the service life of the ventilator is prolonged and the operation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the premise that the technical scheme of the present application is not deviated.
[0019] Figure 1 It is a front view structural schematic diagram of the present application.
[0020] Figure 2 It is a sectional view structural schematic diagram of the present application.
[0021] Figure 3 It is an exploded structural schematic diagram of the air outlet silencer and the dust cover of the present application.
[0022] Figure 4 It is a front view structural schematic diagram of the present application. Figure 3 A enlarged structural schematic diagram of the present application.
[0023] Explanation of reference signs:
[0024] In the drawings: 1, rack; 2, casing; 3, motor; 4, impeller; 5, air inlet; 6, air outlet; 7, air inlet silencer; 8, air outlet silencer; 9, annular clamping groove; 10, dust cover; 1001, clamping sleeve. DETAILED DESCRIPTION
[0025] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.
[0026] It should be noted that all the directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings). If the specific posture is changed, the directionality indications will also be changed accordingly.
[0027] Meanwhile, the meaning of "and / or" or "and / or" in the whole text is that three schemes are included. Taking "A and / or B" as an example, the A scheme, the B scheme, or the scheme that A and B are satisfied at the same time are included.
[0028] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implying the number of the technical features indicated. Therefore, the features limited by "first" and "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.
[0029] Referring to Figures 1-4 , a mine ventilator is provided, which comprises a rack 1, a casing 2, a motor 3 and an impeller 4, the casing 2 is installed on the rack 1, the impeller 4 is arranged in the inside of the casing 2, the motor 3 is connected with the impeller 4 and drives the impeller 4 to rotate, the side of the casing 2 away from the motor 3 has an integrated air inlet 5, and the air inlet 5 is communicated with the casing 2, the top of the casing 2 has an integrated air outlet 6, and the air outlet 6 is communicated with the casing 2, and the air inlet 5 and the air outlet 6 are both provided with a silencer;
[0030] The silencer comprises an air inlet silencer 7 and an air outlet silencer 8, the air inlet silencer 7 is installed at the air inlet 5, and the air outlet silencer 8 is installed at the air outlet 6. In application, the motor 3 drives the impeller 4 to rotate, air is sucked into the inside of the casing 2 from the air inlet 5, and is discharged from the air outlet 6 after being pressurized by the impeller 4. In the process of air flow, the air inlet silencer 7 and the air outlet silencer 8 can effectively absorb the noise generated by the airflow, so as to achieve the purpose of silencing and noise reduction, and further effectively improve the underground operation environment and protect the physical and mental health of the miners.
[0031] Referring to Figure 1 and Figure 2 , the air inlet silencer 7 and the air outlet silencer 8 are both impedance composite silencers, and the inside of each silencer is provided with sound-absorbing cotton and perforated plate, so as to effectively absorb the noise generated by the airflow.
[0032] Referring to Figure 1 , Figure 2 and Figure 3 , the inner wall of the casing 2 is provided with sound-absorbing material, which is one of sound-absorbing cotton, foamed plastic, sound-absorbing film and sound-absorbing paint, so as to further absorb the noise reflected in the inside of the casing 2.
[0033] Referring to Figure 1 , Figure 2 and Figure 3 , the motor 3 is a low-noise motor, so as to further reduce the generation of noise.
[0034] Referring to Figure 2The impeller 4 is made of high-strength light material and is dynamically balanced to further reduce noise.
[0035] With reference to Figure 3 and Figure 4 The air inlet silencer 7 and the air outlet silencer 8 are provided with annular clamping grooves 9 at the ends away from the casing 2, and the annular clamping grooves 9 are provided with detachable dust covers 10.
[0036] With reference to Figure 3 and Figure 4 The dust cover 10 is provided with a clamping sleeve 1001 integrally formed and corresponding to the annular clamping groove 9, and the clamping sleeve 1001 is adapted to the annular clamping groove 9.
[0037] In actual use, the motor 3 drives the impeller 4 to rotate, air is sucked into the casing 2 from the air inlet 5, and is discharged from the air outlet 6 after being pressurized by the impeller 4.
[0038] The utility model discloses simple structure, convenient installation, and the effect of silencing and noise reduction is remarkable, can effectively improve the working environment of underground, and guarantee the physical and mental health of miner.
[0039] It should be understood that the use of these embodiments is only for the purpose of illustrating the present utility model and is not intended to limit the scope of protection of the present utility model. In addition, it should also be understood that after reading the technical content of the present utility model, those skilled in the art can make various changes, modifications and / or variations to the present utility model, and all these equivalent forms also fall within the protection scope defined by the appended claims of the present application.
Claims
1. A mine ventilation fan, comprising a frame (1), a housing (2), a motor (3), and an impeller (4), wherein the housing (2) is mounted on the frame (1), the impeller (4) is disposed inside the housing (2), and the motor (3) is connected to the impeller (4) and drives the impeller (4) to rotate, characterized in that: The housing (2) has an integrally formed air inlet (5) on the side away from the motor (3), and the air inlet (5) is connected to the housing (2). The top of the housing (2) has an integrally formed air outlet (6), and the air outlet (6) is connected to the housing (2). Both the air inlet (5) and the air outlet (6) are equipped with silencers. The silencing device includes an air inlet silencer (7) and an air outlet silencer (8). The air inlet silencer (7) is installed at the air inlet (5), and the air outlet silencer (8) is installed at the air outlet (6).
2. The mine ventilation fan according to claim 1, characterized in that: The air inlet silencer (7) and the air outlet silencer (8) are both impedance composite silencers, and both are equipped with sound-absorbing cotton and perforated plates inside.
3. The mine ventilation fan according to claim 1, characterized in that: The inner wall of the housing (2) is provided with sound-absorbing material, which is one of sound-absorbing cotton, foam plastic, sound-absorbing membrane and sound-absorbing coating.
4. The mine ventilation fan according to claim 1, characterized in that: The motor (3) is a low-noise motor.
5. The mine ventilation fan according to claim 1, characterized in that: The impeller (4) is made of high-strength, lightweight material and is dynamically balanced.
6. The mine ventilation fan according to claim 1, characterized in that: Both the air inlet silencer (7) and the air outlet silencer (8) have annular snap-fit grooves (9) at the ends away from the housing (2), and a detachable dust cover (10) is provided in the annular snap-fit grooves (9).
7. The mine ventilation fan according to claim 6, characterized in that: The dust cover (10) has an integrally formed snap-fit sleeve (1001) corresponding to the annular snap-fit groove (9), and the snap-fit sleeve (1001) is adapted to the annular snap-fit groove (9). The dust cover (10) is installed on the air inlet silencer (7) and the air outlet silencer (8) through the snap-fit sleeve (1001) and the annular snap-fit groove (9).