Pneumatic control equipment for directly connecting granulation and powder screening

Abstract

The utility model relates to the technical field of pneumatic control equipment, in particular to pneumatic control equipment directly connected with granulation and powder screening, which comprises a blanking tank and an air compressor, and the lower part of the blanking tank is connected with a pressure feed tank through a guide pipe; the powder sampling device has the beneficial effects that the driving shaft drives the stirring paddle to rotate through the driving motor, the stirring paddle scatters and stirs powder, meanwhile, the double-shaft motor drives the rotating block to rotate and slide in the sliding groove, the rotating block pulls the push rod to move upwards or downwards, the push rod pushes out the powder blocked in the discharging opening of the discharging tank, and during sampling, sampling can be performed through the sampling hopper; the sampling hopper is pulled out through the pull rod, then the limiting rod is loosened, the reset spring rebounds, the limiting rod is inserted into the limiting groove, the position of the pull rod is limited, the powder condition can be checked at the material taking opening, and the gas flow rate of the air compressor can be conveniently adjusted according to the powder condition; and the blanking efficiency and the conveying efficiency of the pneumatic control equipment for connecting granulation and powder screening are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic control equipment, in particular to a pneumatic control equipment directly connected with granulation and powder screening. Background Art

[0002] When it comes to the handling and processing of granular materials, granulation and powder screening are two common process steps. Granulation is required after powder screening, so granulation equipment and powder screening equipment will be used. Since the powder needs to be transported to the granulation equipment for granulation after screening, a pneumatic control device directly connected to granulation and powder screening will be used to transport the powder. Using pneumatic control equipment for powder transportation is a common method, including pneumatic conveying systems. Pneumatic conveying systems use the power of compressed air to move powder or granular materials.

[0003] The existing pneumatic control equipment directly connected to granulation and powder screening has different particles and humidity of the screened powders. When some powders enter the pressure feeding tank from the bottom of the feed tank, some powders may block the discharge port of the feed tank due to the particles or humidity, affecting the feeding efficiency of the pneumatic control equipment. Therefore, we propose a pneumatic control equipment directly connected to granulation and powder screening. Utility Model Content

[0004] The utility model aims to provide a pneumatic control device directly connecting granulation and powder screening to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pneumatic control device directly connected to granulation and powder screening, including a feed tank and an air compressor, the bottom of the feed tank is connected to a pressure tank through a conduit, the air compressor is connected to the middle of the pressure tank, and one side of the pressure tank is connected to a receiving tank through a conveying pipe.

[0006] Preferably, a stirring mechanism is installed inside the feeding tank, a pushing mechanism is provided on the inner side of the stirring mechanism, a guide block is installed on the inner wall of the feeding tank close to the pushing mechanism, and one side of the pushing mechanism is connected to the guide block.

[0007] Preferably, a connecting box is fixed on one side of the pressure feeding tank, a sampling mechanism is installed on the inner side of the connecting box and the pressure feeding tank, a sealing plate is connected to one end of the sampling mechanism close to the pressure feeding tank, a material taking port is opened on the top of the connecting box, and a limiting groove is provided on the inner side of the sampling mechanism.

[0008] Preferably, the stirring mechanism comprises a driving motor, a supporting block, a stirring paddle and a driving shaft, and a supporting block is fixed inside the discharge tank.

[0009] Preferably, a driving motor is installed in the built-in groove of the support block, one end of the driving motor is connected to a driving shaft, and the outer side of the driving shaft is connected to a ring-shaped stirring paddle.

[0010] Preferably, the sampling mechanism comprises a pull rod, a return spring, a limit rod, a sampling bucket, a support spring and a telescopic rod, and the pull rod is slidably sleeved on the inner side of the connecting box.

[0011] Preferably, a sampling bucket is fixed at one end of the pull rod, a telescopic rod is fixed at the end of the sampling bucket close to the sealing plate, a supporting spring is sleeved on the outer side of the telescopic rod, and the end of the telescopic rod close to the pressure tank is connected to the sealing plate.

[0012] Preferably, a limiting rod passes through the lower part of the connection box, a return spring is sleeved on the outer side of the limiting rod, and a limiting groove is formed on the inner side of the pull rod close to the limiting rod.

[0013] Preferably, the pushing mechanism comprises a dual-axis motor, a push rod, a rotating block and a slide groove, and the dual-axis motor is installed in the built-in groove of the driving shaft.

[0014] Preferably, both ends of the dual-axis motor are connected with rotating blocks, a push rod is slidably sleeved on the inner side of the guide block, a slide groove is provided on the inner side of the push rod, and the slide groove and the rotating block are slidably connected.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model proposes a pneumatic control device directly connecting granulation and powder screening, which drives the driving shaft to rotate the stirring paddle through the driving motor, and the stirring paddle breaks up and stirs the powder, and at the same time the double-axis motor drives the rotating block to rotate and slide in the slide groove, and the rotating block pulls the push rod to move upward or downward, and the push rod pushes out the powder blocked in the discharge port of the discharge tank. When sampling, the pull rod is pulled to one side, so that the pull rod drives the sampling bucket out of the pressure feeding tank, and at the same time the sampling bucket drives the telescopic rod to drive the sealing plate to fit tightly against the opening of the pressure feeding tank, and then the limit rod is loosened to make the reset spring rebound the limit rod to insert into the limit groove, limiting the position of the pull rod, and the powder condition can be checked at the feeding port, which is convenient for adjusting the gas flow rate of the air compressor according to the powder condition, thereby improving the feeding efficiency and the conveying efficiency of the pneumatic control device connecting granulation and powder screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the top view of the stirring paddle structure of the utility model;

[0019] Figure 3This is a schematic diagram of the main cross-sectional structure of the sampling mechanism of the utility model;

[0020] Figure 4 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the push rod of the utility model.

[0022] In the figure: 1. discharge tank; 2. air compressor; 3. pressure tank; 4. delivery pipe; 5. connection box; 6. receiving tank; 7. stirring mechanism; 701. driving motor; 702. support block; 703. stirring paddle; 704. driving shaft; 8. guide block; 9. sampling mechanism; 901. pull rod; 902. return spring; 903. limit rod; 904. sampling bucket; 905. support spring; 906. telescopic rod; 10. pushing mechanism; 101. double-axis motor; 102. push rod; 103. rotating block; 104. slide groove; 11. limit groove; 12. sealing plate; 13. feeding port. DETAILED DESCRIPTION

[0023] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of 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.

[0024] Embodiment 1

[0025] See also Figure 1 , Figure 3 and Figure 4 The utility model provides a technical solution: a pneumatic control device directly connected to granulation and powder screening, including a feed tank 1 and an air compressor 2, the lower part of the feed tank 1 is connected to a pressure tank 3 through a conduit, the air compressor 2 is connected to the middle of the pressure tank 3, one side of the pressure tank 3 is connected to a receiving tank 6 through a conveying pipe 4, and a filter is installed at the upper opening of the receiving tank 6.

[0026] During specific implementation, after the powder falls into the discharge tank 1 from the discharge point of the powder screening equipment, the valve of the discharge tank 1 is opened to allow the powder to enter the interior of the pressure tank 3, and then the valve at the conveying pipe 4 is opened, and at the same time, the valve of the air compressor 2 is opened to allow the air compressor 2 to convey the compressed gas into the pressure tank 3, pushing the powder into the conveying pipe 4, and then the gas pushes the powder to the receiving tank 6 for storage, and the gas is discharged from the opening of the receiving tank 6, and the filter at the opening prevents the powder from being blown out, and finally the powder enters the granulation equipment from the receiving tank 6.

[0027] Embodiment 2

[0028] See also Figure 1 to Figure 2 and Figures 4 to 5 On the basis of the first embodiment, a stirring mechanism 7 is installed inside the feeding tank 1, and a pushing mechanism 10 is provided inside the stirring mechanism 7. A guide block 8 is installed on the inner wall of the feeding tank 1 close to the pushing mechanism 10, and one side of the pushing mechanism 10 is connected to the guide block 8. The stirring mechanism 7 includes a driving motor 701, a support block 702, a stirring paddle 703 and a driving shaft 704. A support block 702 is fixed inside the feeding tank 1, and a driving motor 701 is installed in the built-in groove of the support block 702. One end of the driving motor 701 is connected to a driving Shaft 704, the outer side of the driving shaft 704 is connected with an annularly distributed stirring paddle 703, the pushing mechanism 10 includes a dual-axis motor 101, a push rod 102, a rotating block 103 and a slide groove 104, the dual-axis motor 101 is installed in the built-in groove of the driving shaft 704, the two ends of the dual-axis motor 101 are connected with the rotating block 103, the inner side of the guide block 8 is slidably sleeved with a push rod 102, the inner side of the push rod 102 is provided with a slide groove 104, the slide groove 104 and the rotating block 103 are slidably connected, and the stirring paddle 703 is in an arc shape.

[0029] During specific implementation, due to the different particles and humidity of the powders, when some powders enter the pressure feeding tank 3 from the bottom of the discharge tank 1, some powders may block the discharge port of the discharge tank 1 due to the influence of particles or humidity. The driving motor 701 can be used to drive the driving shaft 704 to rotate, and the driving shaft 704 drives the stirring paddle 703 to rotate. The stirring paddle 703 breaks up and stirs the powder stored in the discharge tank 1. At the same time, the dual-axis motor 101 drives the rotating block 103 to rotate, and the rotating block 103 slides in the slide 104. The rotating block 103 pulls the push rod 102 to move upward or downward, and the push rod 102 slides in the guide block 8. The push rod 102 pushes out the powder blocked in the discharge port of the discharge tank 1, and the stirring paddle 703 and the push rod 102 assist in unloading, thereby improving the unloading efficiency of the pneumatic control equipment connecting granulation and powder screening.

[0030] Embodiment 3

[0031] See also Figure 1 and Figure 3 On the basis of the second embodiment, a connection box 5 is fixed on one side of the pressure feeding tank 3, and a sampling mechanism 9 is installed on the inner side of the connection box 5 and the pressure feeding tank 3. The end of the sampling mechanism 9 close to the pressure feeding tank 3 is connected with a sealing plate 12, and a material taking port 13 is opened on the top of the connection box 5. A limiting groove 11 is provided on the inner side of the sampling mechanism 9. The sampling mechanism 9 includes a pull rod 901, a reset spring 902, a limiting rod 903, a sampling bucket 904, a support spring 905 and a telescopic rod 906. The inner side of the connection box 5 is slidably sleeved with a pull rod 901, and the pull rod 901 is A sampling bucket 904 is fixed at one end, and a telescopic rod 906 is fixed at the end of the sampling bucket 904 close to the sealing plate 12, and a support spring 905 is sleeved on the outer side of the telescopic rod 906. The end of the telescopic rod 906 close to the pressure feeding tank 3 is connected to the sealing plate 12, and a limiting rod 903 passes through the bottom of the connecting box 5, and a return spring 902 is sleeved on the outer side of the limiting rod 903. A limiting groove 11 is provided on the inner side of the pull rod 901 close to the limiting rod 903, and the number of the limiting grooves 11 is provided with two, and an opening is provided on the side of the pressure feeding tank 3 close to the sealing plate 12.

[0032] In specific implementation, since the powder is directly transported from the powder screening device to the pneumatic control device, the staff does not know the specific situation of the powder and needs to sample the powder. However, it is not convenient to sample the powder after it enters the pneumatic control device. Before opening the valve of the air compressor 2, the limit rod 903 can be pulled to one side and the return spring 902 can be squeezed to make one end of the limit rod 903 disengage from the limit groove 11, and then the pull rod 901 is pushed toward the pressure tank 3, and the pull rod 901 pushes the sampling bucket 904 into the pressure tank 3, and the powder enters the sampling bucket 904 again. The pull rod 901 is then pulled to make the pull rod 901 drive the sampling bucket 904 out of the pressure feeding tank 3. At the same time, the sampling bucket 904 makes the telescopic rod 906 drive the sealing plate 12 to be tightly attached to the opening of the pressure feeding tank 3. Then the limit rod 903 is released to make the reset spring 902 rebound. The limit rod 903 is inserted into the limit groove 11 to limit the position of the pull rod 901. Then the staff can check the powder situation at the feeding port 13, which is convenient for adjusting the gas flow rate of the air compressor 2 according to the powder situation, thereby improving the feeding efficiency of the pneumatic control equipment connecting granulation and powder screening.

[0033] In actual use, when the powder is conveyed, the powder falls into the discharge tank 1 from the discharge port of the powder screening equipment, and then the valve of the discharge tank 1 is opened. At the same time, the stirring mechanism 7 and the pushing mechanism 10 assist in the discharge to prevent blockage. Then the powder enters the interior of the pressure feeding tank 3, and then the powder is sampled by the sampling mechanism 9. The gas flow rate of the air compressor 2 is adjusted according to the powder situation, and then the valve at the conveying pipe 4 is opened. At the same time, the valve of the air compressor 2 is opened, so that the air compressor 2 conveys the compressed gas into the pressure feeding tank 3, pushing the powder into the conveying pipe 4, and then the gas pushes the powder to the receiving tank 6 for storage, and the gas is discharged from the opening of the receiving tank 6. The filter at the opening prevents the powder from being blown out, and finally the powder enters the granulation equipment from the receiving tank 6.

[0034] 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 pneumatic control device directly connected to granulation and powder screening, comprising a feed tank (1) and an air compressor (2), characterized in that: The lower part of the discharge tank (1) is connected to a pressure tank (3) via a conduit, the air compressor (2) is connected to the middle of the pressure tank (3), and one side of the pressure tank (3) is connected to a receiving tank (6) via a conveying pipe (4).

2. A pneumatic control device directly connected to granulation and powder screening according to claim 1, characterized in that: A stirring mechanism (7) is installed inside the feeding tank (1), a pushing mechanism (10) is provided on the inner side of the stirring mechanism (7), a guide block (8) is installed on the inner wall of the feeding tank (1) close to the pushing mechanism (10), and one side of the pushing mechanism (10) is connected to the guide block (8).

3. A pneumatic control device directly connected to granulation and powder screening according to claim 2, characterized in that: A connection box (5) is fixed on one side of the pressure feeding tank (3), a sampling mechanism (9) is installed on the inner side of the connection box (5) and the pressure feeding tank (3), a sealing plate (12) is connected to one end of the sampling mechanism (9) close to the pressure feeding tank (3), a material taking port (13) is provided on the top of the connection box (5), and a limiting groove (11) is provided on the inner side of the sampling mechanism (9).

4. The pneumatic control device directly connected to granulation and powder screening according to claim 2, characterized in that: The stirring mechanism (7) comprises a driving motor (701), a supporting block (702), a stirring paddle (703) and a driving shaft (704), and the supporting block (702) is fixed inside the feeding tank (1).

5. The pneumatic control device directly connected to granulation and powder screening according to claim 4, characterized in that: A driving motor (701) is installed in the support block (702), one end of the driving motor (701) is connected to a driving shaft (704), and the outer side of the driving shaft (704) is connected to a stirring paddle (703) distributed in an annular shape.

6. The pneumatic control device directly connecting granulation and powder screening according to claim 3, characterized in that: The sampling mechanism (9) comprises a pull rod (901), a return spring (902), a limit rod (903), a sampling bucket (904), a support spring (905) and a telescopic rod (906), and the pull rod (901) is slidably sleeved on the inner side of the connecting box (5).

7. A pneumatic control device directly connected to granulation and powder screening according to claim 6, characterized in that: A sampling bucket (904) is fixed to one end of the pull rod (901), a telescopic rod (906) is fixed to one end of the sampling bucket (904) close to the sealing plate (12), a support spring (905) is sleeved on the outer side of the telescopic rod (906), and the end of the telescopic rod (906) close to the pressure tank (3) is connected to the sealing plate (12).

8. The pneumatic control device directly connecting granulation and powder screening according to claim 7, characterized in that: A limiting rod (903) passes through the bottom of the connection box (5), a return spring (902) is sleeved on the outer side of the limiting rod (903), and a limiting groove (11) is provided on the inner side of the pull rod (901) close to the limiting rod (903).

9. The pneumatic control device directly connected to granulation and powder screening according to claim 5, characterized in that: The pushing mechanism (10) comprises a double-axis motor (101), a push rod (102), a rotating block (103) and a slide groove (104), and the driving shaft (704) is equipped with the double-axis motor (101).

10. The pneumatic control device directly connecting granulation and powder screening according to claim 9, characterized in that: The two ends of the dual-axis motor (101) are connected to a rotating block (103), the inner side of the guide block (8) is slidably sleeved with a push rod (102), the inner side of the push rod (102) is provided with a slide groove (104), and the slide groove (104) and the rotating block (103) are slidably connected.

Images