Powder pneumatic conveying bin pump sending device

Abstract

The utility model discloses a powder pneumatic conveying bin pump sending device, and relates to the technical field of pneumatic conveying equipment, the powder pneumatic conveying bin pump sending device comprises a bin pump material box, the top end of the bin pump material box is fixedly connected with a bin cover, and the top end in the bin cover is provided with an air dispersing assembly which uniformly disperses air and prevents powder from splashing. According to the powder pneumatic conveying bin pump sending device, through the arrangement of the cambered surface circular plate, the cross-shaped bearing frame, the fixing rod and the gas baffle plate, when the powder pneumatic conveying bin pump sending device is used, along with the increase of pressure in a bin pump material box, powder and gas are sent into the discharging pipe together and are continuously discharged, and when gas enters the gas inlet pipe, the cambered surface circular plate can block directly-sprayed gas flow and disperse the gas flow to the periphery; and the cross-shaped supporting frame and the fixing rod are used for installing and fixing the arc-surface circular plate, when the feeding valve conducts feeding, the air blocking plate is used for blocking the powder, the influence of the powder on the exhaust valve is reduced, the function of dispersing air and preventing direct injection is achieved, and the problem that the device does not have the function of dispersing air and preventing direct injection is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pneumatic conveying equipment technical field, concretely is a kind of powder pneumatic conveying bin pump sending device. BACKGROUND

[0002] Pneumatic conveying equipment is used to convey materials by using the flow and pressure difference of gas, and is mainly used for conveying powder and light particles, and is widely used in the fields of casting, metallurgy, chemical industry, building materials and grain processing, wherein the bin pump sending device is the core component of the pneumatic conveying equipment, which is used for feeding and feeding.

[0003] The common powder pneumatic conveying bin pump sending device on the market is mostly similar in overall structure, with a bin pump hopper as the main body, a feeding valve on the top, a pressure relief valve and an air inlet pipe, a vent pipe and various valve assemblies at the bottom, which has some functional deficiencies in actual use, and has certain improvement space, such as when air is inhaled, the gas directly enters the bin pump hopper along the air inlet pipe, which will impact the powder in the hopper, causing the powder to splash in the hopper, causing problems such as attachment and blockage of the bottom of the pressure relief valve and other components, which is troublesome to clean and does not have the function of dispersing gas to prevent direct injection.

[0004] Now, a new type of powder pneumatic conveying bin pump sending device is proposed to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a kind of powder pneumatic conveying bin pump sending device to solve the problem of not having the function of dispersing gas to prevent direct injection as described in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of powder pneumatic conveying bin pump sending device, including bin pump hopper, the top of the bin pump hopper is fixedly connected with bin cover, the right side of the top of the bin cover is fixedly connected with feeding valve, the middle position of the top of the bin cover is installed with exhaust valve, the left side of the top of the bin cover is fixedly connected with air inlet pipe, the bottom of the bin pump hopper is fixedly connected with discharge pipe, the left side of the discharge pipe is installed with check valve, the left side of the check valve is installed with pneumatic butterfly valve, the left side of the pneumatic butterfly valve is installed with stop valve, the left side of the stop valve is fixedly connected with gas conveying pipe, the right side of the discharge pipe is installed with discharge valve, the right side of the discharge valve is fixedly connected with connecting pipe, the top of the inside of the bin cover is provided with the even gas dispersing assembly that prevents powder from splashing.

[0007] The gas dispersing assembly includes an arc surface round plate, which is arranged below the air inlet pipe, and a cross bracket is welded to the bottom of the arc surface round plate, and a fixed rod is vertically welded to the front and rear ends of the left and right sides of the cross bracket, and a gas baffle is fixedly connected to the right side of the top of the inside of the bin cover.

[0008] As a further technical scheme of the utility model, the top end of the fixed rod is connected with the top end inside the bin cover, and the fixed rod is symmetrically distributed about the vertical center line of the cross bearing bracket.

[0009] As a further technical scheme of the utility model, the vertical center line of the arc surface circular plate and the cross bearing bracket coincides, and there is a distance between the top end of the arc surface circular plate and the top end inside the bin cover.

[0010] As a further technical scheme of the utility model, the bottom end of the air baffle is lower than the top end of the arc surface circular plate, and the front and rear ends of the air baffle are flush with the front and rear ends of the feed valve.

[0011] As a further technical scheme of the utility model, the bottom of the bin pump feed tank left and right sides is respectively welded with a fixed seat, the right side of the fixed seat is installed with a servo motor, the output end of the servo motor is fixedly connected with an eccentric wheel, the fixed seat is symmetrically distributed about the vertical center line of the bin pump feed tank, and there is a distance between the bin pump feed tank and the eccentric wheel.

[0012] As a further technical scheme of the utility model, the top end of the gas conveying pipe is welded with a gas distribution port, the top end of the gas distribution port is installed with a second electromagnetic valve, the bottom end of the gas inlet pipe is fixedly connected with a tee joint, the left side of the tee joint is installed with a first electromagnetic valve, the bottom end of the tee joint is connected with the top end of the second electromagnetic valve, and the inside of the gas distribution port and the gas conveying pipe is connected.

[0013] Compared with the prior art, the powder pneumatic conveying bin pump sending device not only realizes the function of scattered gas anti-straight jet, but also realizes the functions of vibration acceleration and accelerated unloading and air inlet pressurization.

[0014] (1) By setting the arc surface circular plate, the cross bearing bracket, the fixed rod and the air baffle, when in use, the material enters from the feed valve, as the powder continuously enters, the exhaust valve gradually exhausts and depressurizes, as the powder filling is completed, the feed valve and the exhaust valve are synchronously closed, the main gas pump pumps gas from the gas conveying pipe, part of the high-pressure gas enters the bin pump feed tank along the gas inlet pipe, part of the high-pressure gas flows at high speed along the discharge pipe, as the pressure in the bin pump feed tank increases, the powder and the gas are sent into the discharge pipe and continuously discharged, when the gas inlet pipe is in the air inlet, the arc surface circular plate can block the straight jet airflow and disperse it to the four directions, avoiding the straight jet airflow downward to cause the powder to splash, the cross bearing bracket and the fixed rod are used for mounting and fixing the arc surface circular plate, when the feed valve is in the feed, the air baffle is used for shielding the powder, reducing the influence on the exhaust valve, and realizing the function of scattered gas anti-straight jet.

[0015] (2) by being provided with fixed seat, servo motor and eccentric wheel, in the feeding process, the servo motor on the fixed seat is started synchronously, the eccentric wheel at the output end of the servo motor rotates at high speed to produce vibration, the powder in the bin pump tank slides down quickly, the function of vibration accelerating unloading is realized;

[0016] (3) by being provided with three-way joint, first electromagnetic valve, second electromagnetic valve and gas distribution port, when in use, the main gas pump is connected to the gas conveying pipe, the auxiliary gas pump is connected to the first electromagnetic valve, when the gas pressure distributed by the top gas port of the gas conveying pipe is insufficient, the powder discharging speed is insufficient, the second electromagnetic valve is closed, the first electromagnetic valve is opened, at the same time, the auxiliary gas pump directly supplies gas, the high-pressure gas enters the bin pump tank along the gas inlet pipe, the powder discharging is accelerated, the function of gas inlet pressurization is realized. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view structural schematic diagram of the utility model;

[0018] Figure 2 It is a front view sectional enlarged structural schematic diagram of the bin cover of the utility model;

[0019] Figure 3 It is a Figure 1 It is a sectional enlarged structural schematic diagram of the part A of the utility model;

[0020] Figure 4 It is a front view structural schematic diagram of the gas pump connection state of the utility model.

[0021] In the drawing: 1, bin pump tank; 2, bin cover; 3, feeding valve; 4, exhaust valve; 5, gas inlet pipe; 6, cambered round plate; 7, cross bearing bracket; 8, fixed rod; 9, gas baffle; 10, fixed seat; 11, servo motor; 12, eccentric wheel; 13, three-way joint; 14, first electromagnetic valve; 15, second electromagnetic valve; 16, gas distribution port; 17, gas conveying pipe; 18, stop valve; 19, pneumatic butterfly valve; 20, check valve; 21, discharge pipe; 22, discharge valve; 23, connecting pipe. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, apparently, 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 belong to the protection scope of the utility model.

[0023] Embodiment: please refer to Figures 1-4The utility model provides a kind of powder pneumatic conveying warehouse pump sending device, including warehouse pump feed tank 1, the top of warehouse pump feed tank 1 is fixedly connected with warehouse cover 2, the right side of the top of warehouse cover 2 is fixedly connected with feed valve 3, the middle position of the top of warehouse cover 2 is installed with exhaust valve 4, the left side of the top of warehouse cover 2 is fixedly connected with air inlet pipe 5, the bottom of warehouse pump feed tank 1 is fixedly connected with discharge pipe 21, check valve 20 is installed on the left side of discharge pipe 21, pneumatic butterfly valve 19 is installed on the left side of check valve 20, stop valve 18 is installed on the left side of pneumatic butterfly valve 19, gas supply pipe 17 is fixedly connected on the left side of stop valve 18, discharge valve 22 is installed on the right side of discharge pipe 21, discharge valve 22 is fixedly connected with connecting pipe 23 on the right side, the top inside warehouse cover 2 is provided with even air distribution powder splashing prevention air distribution assembly;

[0024] Please refer to Figures 1-4 The utility model provides a kind of powder pneumatic conveying warehouse pump sending device further includes air distribution assembly, air distribution assembly includes cambered round plate 6, cambered round plate 6 is arranged below air inlet pipe 5, the bottom of cambered round plate 6 is welded with cross bracket 7, the front and rear ends of the left and right sides of cross bracket 7 are vertically welded with fixed rod 8, the right side of the top inside warehouse cover 2 is fixedly connected with baffle 9;

[0025] The top of fixed rod 8 and the top inside warehouse cover 2 are connected, fixed rod 8 is symmetrically distributed about the vertical center line of cross bracket 7, the vertical center line of cambered round plate 6, cross bracket 7 coincides, there is distance between the top of cambered round plate 6 and the top inside warehouse cover 2, the bottom of baffle 9 is lower than the top of cambered round plate 6, the front and rear ends of baffle 9 are flush with the front and rear ends of feed valve 3, can prevent powder splashing caused by direct injection of airflow;

[0026] Specifically, as Figure 1 And Figure 2 Shown, cambered round plate 6 can stop the airflow of direct injection, disperses it to all around, avoids the powder splashing caused by airflow straight down, cross bracket 7, fixed rod 8 are used for the installation and fixation of cambered round plate 6, when feeding, baffle 9 is used to shield powder, reduces its influence on exhaust valve 4.

[0027] The bottom of warehouse pump feed tank 1 left and right sides is welded with fixed seat 10 respectively, servo motor 11 is installed on the right side of fixed seat 10, the output end of servo motor 11 is fixedly connected with eccentric wheel 12, fixed seat 10 is symmetrically distributed about the vertical center line of warehouse pump feed tank 1, there is distance between warehouse pump feed tank 1, eccentric wheel 12, accelerate unloading by vibration;

[0028] Specifically, as Figure 1 And Figure 3 Shown, the eccentric wheel 12 of the output end of servo motor 11 high-speed rotation generates vibration, makes the powder in warehouse pump feed tank 1 quickly slide down.

[0029] The top end of the gas conveying pipe 17 is welded with a gas distribution port 16, the top end of the gas distribution port 16 is installed with a second electromagnetic valve 15, the bottom end of the gas inlet pipe 5 is fixedly connected with a three-way joint 13, the left side of the three-way joint 13 is installed with a first electromagnetic valve 14, the bottom end of the three-way joint 13 and the top end of the second electromagnetic valve 15 are connected, the inside of the gas distribution port 16 and the inside of the gas conveying pipe 17 are connected, the upper limit of the gas pressure is increased by increasing the gas pump inlet;

[0030] Specifically, as shown in Figure 1 and Figure 4 shown, the second electromagnetic valve 15 is closed, the first electromagnetic valve 14 is opened, and at the same time, the gas is directly supplied by the auxiliary gas pump, the high-pressure gas enters the bin pump tank 1 along the gas inlet pipe 5, and the powder is accelerated to be discharged.

[0031] Working principle: when the utility model is in use, first, the material enters from the feeding valve 3, as the powder continuously enters, the exhaust valve 4 gradually exhausts and depressurizes, as the powder filling is completed, the feeding valve 3 and the exhaust valve 4 are synchronously closed, the main gas pump pumps gas from the gas conveying pipe 17, part of the high-pressure gas enters the bin pump tank 1 along the gas inlet pipe 5, and part of the high-pressure gas flows along the discharge pipe 21 at high speed, as the pressure in the bin pump tank 1 increases, the powder and the gas are sent into the discharge pipe 21 and continuously discharged, when the gas inlet pipe 5 is in gas inlet, the arc surface circular plate 6 can block the straight jet airflow and disperse it to the four directions, avoiding the straight jet airflow from downwardly directly colliding to cause the powder to splash, the cross-shaped supporting frame 7 and the fixed rod 8 are used for mounting and fixing the arc surface circular plate 6, when the feeding valve 3 is in feeding, the gas baffle 9 is used for shielding the powder, reducing the influence on the exhaust valve 4. In the feeding process, the servo motor 11 on the fixed seat 10 is synchronously started, the eccentric wheel 12 at the output end of the servo motor 11 rotates at high speed to generate vibration, so that the powder in the bin pump tank 1 rapidly slides down. The main gas pump is connected to the gas conveying pipe 17, the auxiliary gas pump is connected to the first electromagnetic valve 14, when the gas pressure of the top part gas distribution port 16 is insufficient, the powder discharge speed is not enough, the second electromagnetic valve 15 is closed, the first electromagnetic valve 14 is opened, at the same time, the gas is directly supplied by the auxiliary gas pump, the high-pressure gas enters the bin pump tank 1 along the gas inlet pipe 5, and the powder is accelerated to be discharged.

[0032] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point, the embodiments should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the appended claims instead of the above description, and therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any figure mark in the claims should not be regarded as limiting the involved claims.

Claims

1. A powder pneumatic conveying silo pump delivery device comprising a silo pump hopper (1), characterized in that: The top end of the bin pump tank (1) is fixedly connected with a bin cover (2), the right side of the top of the bin cover (2) is fixedly connected with a feeding valve (3), the middle position of the top of the bin cover (2) is installed with an exhaust valve (4), the left side of the top of the bin cover (2) is fixedly connected with an air inlet pipe (5), the bottom end of the bin pump tank (1) is fixedly connected with a discharge pipe (21), the left side of the discharge pipe (21) is installed with a check valve (20), the left side of the check valve (20) is installed with a pneumatic butterfly valve (19), the left side of the pneumatic butterfly valve (19) is installed with a stop valve (18), the left side of the stop valve (18) is fixedly connected with a gas conveying pipe (17), the right side of the discharge pipe (21) is installed with a discharge valve (22), the right side of the discharge valve (22) is fixedly connected with a connecting pipe (23), the top end of the inside of the bin cover (2) is provided with a uniform air distribution air distribution assembly for preventing powder splashing. The air distribution assembly comprises an arc surface round plate (6), the arc surface round plate (6) is arranged below the air inlet pipe (5), the bottom of the arc surface round plate (6) is welded with a cross supporting frame (7), the front and back ends of the left and right sides of the cross supporting frame (7) are respectively vertically welded with fixed rods (8), the right side of the top end of the inside of the bin cover (2) is fixedly connected with a gas baffle (9).

2. The powder pneumatic conveying bin pump delivery apparatus according to claim 1, wherein: The top end of the fixed rod (8) is connected with the top end of the inside of the bin cover (2), the fixed rod (8) is symmetrically distributed about the vertical center line of the cross supporting frame (7).

3. The powder pneumatic conveying bin pump delivery apparatus of claim 1, wherein: The vertical center lines of the arc surface round plate (6) and the cross supporting frame (7) coincide, and there is a distance between the top end of the arc surface round plate (6) and the top end of the inside of the bin cover (2).

4. The powder pneumatic conveying bin pump delivery apparatus of claim 1, wherein: The bottom end of the gas baffle (9) is lower than the top end of the arc surface round plate (6), and the front and back ends of the gas baffle (9) are flush with the front and back ends of the feeding valve (3).

5. The powder pneumatic conveying bin pump sender device of claim 1, wherein: The bottoms of the left and right sides of the bin pump tank (1) are respectively welded with fixed seats (10), the right side of the fixed seat (10) is installed with a servo motor (11), the output end of the servo motor (11) is fixedly connected with an eccentric wheel (12), the fixed seats (10) are symmetrically distributed about the vertical center line of the bin pump tank (1), and there is a distance between the bin pump tank (1) and the eccentric wheel (12).

6. The powder pneumatic conveying bin pump sender device of claim 1, wherein: The top end of the gas conveying pipe (17) is welded with a gas distribution port (16), the top end of the gas distribution port (16) is installed with a second electromagnetic valve (15), the bottom end of the air inlet pipe (5) is fixedly connected with a three-way joint (13), the left side of the three-way joint (13) is installed with a first electromagnetic valve (14), the bottom end of the three-way joint (13) is connected with the top end of the second electromagnetic valve (15), and the interiors of the gas distribution port (16) and the gas conveying pipe (17) are communicated.

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