Vibrating screen with dust removal function

Abstract

The utility model relates to the technical field of vibrating screens, and discloses a vibrating screen with a dust removal function, which comprises a support frame, a screening box is movably mounted at the top end of the support frame through a spring seat, a sealing box cover is mounted at the top end of the screening box through a mounting bolt, two vibrating motors are mounted at the rear positions of two sides of the screening box, and a dust removal device is mounted at the top end of the screening box. A feeding opening is formed in the rear position of the top end of the sealing box cover, a first screen is installed on the upper position in the screening box, a second screen is installed in the screening box and located below the first screen, and an air spraying opening is formed in the front end of the screening box and located below the second screen; through the screening box, a sealing box cover, a second screen, an ash extraction pipe, an air spraying opening and a discharging opening, dust adhering to raw materials can be blown down conveniently, the dust removal effect is further improved, most blocked particles can be blown out, the particles are prevented from being clamped at screening holes for a long time, and the influence on the screening efficiency is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of vibrating screen, concretely to a vibrating screen with dust removal function. BACKGROUND

[0002] In the polyester production process, vacuum drum drying is a common slice drying process, the vacuum drum dryer is a jacketed tank, low pressure steam or heat conducting oil can be introduced into the jacket, the inner tank of the vacuum drum dryer is heated, the heat is transferred to the slice raw material through the inner tank, the moisture in the slice raw material is gasified; the low-speed motor drives the tank to rotate, the material is constantly up and down and inside and outside, and the heating surface is replaced; the water vapor evaporated from the raw material slice is continuously pumped away by the vacuum pump through the vacuum pipeline, the drying rate of the material is accelerated, and the purpose of uniformly drying the material is finally achieved.

[0003] But in the turning process of the slice, there will be abrasion, which makes the dried raw material contain polyester small particles and dust, in order to ensure the quality of the slice, generally screening is carried out through the vibrating screen, but because the dust itself has certain adsorption, the surface of the slice still adsorbs dust after passing through the vibrating screen.

[0004] Chinese patent provides a kind of vibrating screen with dust removal function, publication number is CN206997043U, including sieve box, vibrating motor, discharge port, exhaust fan, sieve plate and flower board, the sieve box side is fixed with connecting rod, the sieve box is fixed on the compression spring on the pillar through connecting rod, the pillar is provided with four, and the beam is fixed between the pillar and the pillar.

[0005] The above device sets first and second inclined plates at the inlet, and the synergistic effect of the two inclined plates prevents dust from being blown out of the sieve box when the material falls onto the sieve plate. The dust above the coarse material is extracted through the extraction port set at the left end of the sieve box, preventing the coarse material from continuing to vibrate on the sieve plate and generating dust after extraction, thereby improving the dust removal efficiency.

[0006] However, by shaking the dust out and extracting it through the extraction port, it is difficult to remove the adhered dust when the dust adheres to the particles, and the use effect is poor. Moreover, a small amount of dust particles may adhere to the screen, which may affect the screening efficiency. UTILITY MODEL CONTENT

[0007] The utility model aims to provide a vibrating screen with dust removal function, which can effectively solve the problems in the background art.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0009] A kind of vibrating screen with dust removal function, including support frame, the top of the support frame is movably installed with screening box by spring seat, the top of the screening box is installed with sealing box cover by mounting bolt, two vibrating motors are installed at the both sides of the screening box and rear position;

[0010] The top of the sealing box cover is provided with a feed inlet at the rear position, a screen one is installed in the interior of the screening box and upper position, a screen two is installed in the interior of the screening box and below the screen one, a blast port is provided at the front end of the screening box and below the screen two, a blower is installed on one side of the support frame and central position by support plate, the air outlet of the blower is connected with the air inlet of the blast port by air conveying pipe.

[0011] Preferably, three discharge ports are provided at the lower position of the front end of the screening box, the length of the screen one is greater than the screen two, and the end of the screen one away from the feed inlet is connected with the most front discharge port, and the screen two is connected with the discharge port in the middle.

[0012] Preferably, the blast port is inclined, and the inclination angle is adaptively matched with the screen two, and the blast port is provided with a dust screen at the air inlet inside the screening box.

[0013] Preferably, an ash pipe is provided at the front position of the top of the sealing box cover, the air conveying pipe and the ash pipe are provided with flexible pipes, and the end of the ash pipe away from the sealing box cover is connected with an external cyclone dust collector.

[0014] Preferably, a climbing ladder is provided on the side of the support frame away from the blower, and the climbing ladder does not contact the screening box.

[0015] Preferably, a plurality of equidistantly arranged screen holes are opened at the top of the screen one and the screen two, and the screen hole size of the screen one is greater than the screen hole size of the screen two.

[0016] Compared with the prior art, the beneficial effects of the present application are:

[0017] The screening box, the sealing box cover, the screen two, the ash pipe, the blast port and the blower are cooperated, when slicing raw materials are screened, the ash pipe is arranged to suck out the dust shaken out of the screening box and the sealing box cover, so as to avoid the dust adhering to the raw materials or the box, and the blast port continuously blows air to the screen two and the screen one, so as to blow the dust adhering to the raw materials, and further improve the dust removal effect.

[0018] Through mutual cooperation of the screening box, the screen No.2, the air blowing port and the discharging port, the polyester particles can be collected according to the size in a layered screening mode, subsequent processing is facilitated, and through the continuous air blowing mode of the air blowing port, most of the particles blocked at the screen No.1 and the screen No.1 can be blown out, the particles are prevented from being stuck in the screen holes for a long time, and the influence on the screening efficiency is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of the vibrating screen with the dust removal function in the embodiment of the utility model.

[0020] Figure 2 It is a rear perspective view of the vibrating screen with the dust removal function in the embodiment of the utility model. Figure 1

[0021] Figure 3 It is an internal structure sectional view of the screening box in the embodiment of the utility model.

[0022] Figure 4 It is a structure schematic view of the air blowing port in the embodiment of the utility model.

[0023] In the drawing: 1, support frame; 2, screening box; 3, sealing box cover; 4, vibrating motor; 5, feeding port; 6, screen No.1; 7, screen No.2; 8, air blowing port; 9, air blower; 10, air conveying pipe; 11, spring seat; 12, discharging port; 13, dust extraction pipe. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings of the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0025] Embodiment one.

[0026] In combination with Figures 1-4 , a vibrating screen with a dust removal function, comprising a support frame 1, the top end of the support frame 1 is movably installed with a screening box 2 through a spring seat 11, the top end of the screening box 2 is installed with a sealing box cover 3 through mounting bolts, two vibrating motors 4 are installed at the both sides of the screening box 2.

[0027] Referring to Figure 2 and Figure 3 ​, further get, the top of the sealing box cover 3 rear position is provided with feed inlet 5, the inside of the screening box 2 is installed with screen one 6 upper position, the inside of the screening box 2 is installed with screen two 7 below screen one 6, the front end of the screening box 2 is provided with air jet 8 below screen two 7, the side of the support frame 1 is installed with air blower 9 through support plate in the middle position, the air outlet of air blower 9 is connected with the air inlet of air jet 8 through air conveying pipe 10, air jet 8 is inclined, and the inclination angle is adaptively matched with screen two 7, air jet 8 is provided with dust screen in the air inlet of the screening box 2, to avoid small polyester particles falling in; the top of the sealing box cover 3 is provided with dust extraction pipe 13, air conveying pipe 10 and dust extraction pipe 13 are provided with flexible pipe, and the end of dust extraction pipe 13 away from the sealing box cover 3 is connected with external cyclone dust collector.

[0028] Specifically, the slices can be poured into the inside of the screening box 2 through the feed inlet 5, then the vibration motor 4 can be started, the screening box 2 installed on the support frame 1 through the spring seat 11 can be shaken, so as to drive the slices to shake on the screen one 6, to screen the slices entering the screening box 2, and in the screening process, the dust extraction pipe 13 can be connected with the external bag dust collector in advance, so as to extract the dust from the inside of the screening box 2, and when feeding, the air blower 9 can be started, because the air outlet of the air blower 9 is connected with the air inlet of the air jet 8 through the air conveying pipe 10, so high speed airflow can be continuously conveyed to the air jet 8, and the air jet 8 is inclined, and the inclination angle is matched with screen two 7, so that the dust adhered to the slices can be blown off by continuously spraying high speed airflow at the air jet 8, to further improve the dust removal effect.

[0029] Example two.

[0030] Referring to Figure 2 And Figure 4 , and on the basis of example one, further get, the front end of the screening box 2 is provided with three discharge ports 12 below, the length of screen one 6 is greater than that of screen two 7, and the end of screen one 6 away from the feed inlet 5 is connected with the frontmost discharge port 12, screen two 7 is connected with the middle discharge port 12, the side of the support frame 1 away from the air blower 9 is provided with climbing ladder, and the climbing ladder is not in contact with the screening box 2, a plurality of equidistantly arranged screen holes are opened in the top of screen one 6 and screen two 7, and the screen hole size of screen one 6 is greater than that of screen two 7.

[0031] Specifically, after the polyester particles are screened by screen 6, larger polyester particles will fall from screen 6 to the discharge port 12, which is furthest from the feed inlet 5. Medium-sized polyester particles will fall to screen 7, and then from screen 7 to the middle discharge port 12. The smaller polyester particles will fall to the bottom of the screening box 2 and be discharged from the last discharge port 12. Under the action of high-speed airflow, the small particles falling to the bottom of screen 2 have less dust on them. Since these small polyester particles do not meet the usage requirements, they are generally disposed of as waste and recycled. Therefore, regardless of the amount of dust adsorbed on them, the polyester particles screened by the above discharge method can be collected according to particle size for subsequent centralized processing.

[0032] In actual operation, the polyester granules containing dust chips can be poured into the screening box 2 through the feed inlet 5. Then, the vibration motor 4 can be started. The vibration motor 4 generates vibration, which makes the screening box 2, which is mounted on the support frame 1 via the spring seat 11, shake. This causes the chips to shake on the screen 6, so as to screen the chips that have entered the screening box 2. During the screening process, the dust extraction pipe 13 can be connected to the external bag dust collector in advance so as to extract the dust from the inside of the screening box 2.

[0033] Furthermore, when feeding, the blower 9 can be started. Since the air outlet of the blower 9 is connected to the air inlet of the spray nozzle 8 through the air supply pipe 10, a high-speed airflow can be continuously delivered to the spray nozzle 8. The spray nozzle 8 is set at an angle, and the angle of the angle matches the screen 7. Thus, the dust adhering to the slice can be blown off by continuously spraying a high-speed airflow through the spray nozzle 8, thereby further improving the dust removal effect.

[0034] After the polyester particles are screened by screen 6, the larger polyester particles will fall from screen 6 to the discharge port 12, which is furthest from the feed port 5, and the medium-sized polyester particles will fall to screen 7, and then fall from screen 7 to the middle discharge port 12.

[0035] The smaller polyester particles will fall to the bottom of the screening box 2 and be discharged from the last discharge port 12. Since these small polyester particles do not meet the usage requirements, they are generally disposed of as waste and recycled. Therefore, regardless of the amount of dust adsorbed on them, the polyester particles screened out can be collected according to their particle size through the above discharge method for subsequent centralized processing.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vibrating screen with dust removal function, comprising a support frame (1), wherein a screening box (2) is movably mounted on the top of the support frame (1) via a spring seat (11), characterized in that: The top of the screening box (2) is fitted with a sealing box cover (3) by mounting bolts, and two vibration motors (4) are installed on the rear sides of the screening box (2). The top rear of the sealed box cover (3) is provided with a feed inlet (5), the upper part of the screening box (2) is provided with a screen one (6), the lower part of the screening box (2) is provided with a screen two (7), the front end of the screening box (2) is provided with an air nozzle (8), the middle part of one side of the support frame (1) is provided with a blower (9) through a support plate, and the air outlet of the blower (9) is connected to the air inlet of the air nozzle (8) through an air supply pipe (10).

2. A vibrating screen with dust removal function according to claim 1, characterized in that: The screening box (2) has three discharge ports (12) at the lower front end. The length of the first screen (6) is greater than that of the second screen (7), and the end of the first screen (6) away from the feed inlet (5) is connected to the foremost discharge port (12). The second screen (7) is connected to the middle discharge port (12).

3. A vibrating screen with dust removal function according to claim 1, characterized in that: The air nozzle (8) is inclined and the inclination angle is adapted to match the screen (7). A dustproof net is provided at the air outlet of the air nozzle (8) extending into the screening box (2).

4. A vibrating screen with dust removal function according to claim 1, characterized in that: A dust extraction pipe (13) is provided at the front of the top of the sealed box cover (3). The air supply pipe (10) and the dust extraction pipe (13) are both flexible hoses, and the end of the dust extraction pipe (13) away from the sealed box cover (3) is connected to an external cyclone dust collector.

5. A vibrating screen with dust removal function according to claim 1, characterized in that: The support frame (1) is provided with a ladder on the side away from the blower (9), and the ladder does not contact the screening box (2).

6. A vibrating screen with dust removal function according to claim 1, characterized in that: A number of equidistant sieve holes are provided at the top of the screen one (6) and the screen two (7), and the size of the sieve hole of the screen one (6) is larger than the size of the sieve hole of the screen two (7).

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