CN213084737U - Pressure feeding switching discharge valve - Google Patents

Abstract

The utility model relates to a pressure feed switching discharge valve, which comprises a shell (1), a mounting flange (2), a pipeline connecting flange (3), a shell top cover (4), a deflector rod (5), a cylinder (6), a mounting bracket (7), a downward-rotation baffle plate (8), a straight-through pipe (9) and an exhaust pipe (10); the lower end of the shell (1) is provided with a mounting flange (2), the upper end of the shell is provided with a shell top cover (4), pipeline connecting flanges (3) are respectively mounted on two sides of the shell, the pressure feeding switching discharge valve is mounted on a feed inlet flange on the top of a discharge bin through the mounting flange (2) on the shell (1), and the pipeline connecting flanges (3) on two sides of the shell are respectively connected into a pressure feeding pipeline system. The equipment has the functions of material flow switching, automatic material and gas separation and quick discharging, thereby simplifying the whole pressure feeding system.

Description

Pressure feeding switching discharge valve

Technical Field

The utility model belongs to the technical field of food and chemical industry, concretely relates to pressure feed switches discharge valve.

Background

Compared with the traditional mechanical conveying mode, the pneumatic conveying technology for conveying powdery and fine bran materials has the advantages of flexible conveying line, long conveying distance, high conveying speed, no material residue in the conveying process, no external pollution, convenience in combination and switching, realization of multi-point unloading and the like, and is an efficient and clean conveying mode which is widely applied to the industries such as domestic grain, food, chemical industry, cement, medicine and the like. The mode of unloading of putting into the warehouse commonly used at present, especially when needing to establish ties the multiple spot and unload, mostly all adopt the two-way valve to switch the direction of delivery, join in marriage the method that sets up a set of device that is used for tail gas collection at the top in the unloading warehouse simultaneously. One mode of tail gas collection is to install a flat bag dust collector on the top cover of the discharging bin, and the other mode is to connect an air suction pipe on the top cover of the discharging bin, connect the air suction pipes on a plurality of discharging bins in parallel and collect the air suction pipes to form a set of special air suction net, and then uniformly collect the air as a material conveying carrier by a fan and then suck the air into a pulse dust collector for centralized processing. The two modes have respective defects, although the first mode does not need to be provided with a set of air suction pipe network, the sedimentation materials of each unloading bin fall back to the bin of the first mode, the materials cannot be crossed, but 1 flat cloth bag pulse is arranged at the top of each bin, the equipment investment is increased, and the sedimentation powder of the pulse falls into the bin to easily cause the pollution problem of the materials. The unloading mode needs enough height space on the top of the bin, and is a very difficult problem when enterprises adopt pneumatic pressure feeding materials; the second mode needs to be provided with a single group of air suction nets which are converged at the top of each discharging bin, so that the problem that materials of different discharging bins are easy to intersect in variety and quality is solved, particularly in the grain and food industries with higher sanitary requirements, powder collected by a dust remover cannot return to main materials, only degradation treatment is performed, more materials collected by a pulse dust remover can account for 1% -2% of the conveying amount, and certain economic loss is caused to enterprises.

Disclosure of Invention

The utility model discloses aim at solving in the present strength pressure feed system material gas separation difficulty when advancing the storehouse, tail gas dust removal easily cause material pollution and loss, the system equipment configuration is various, the high scheduling problem of storehouse top equipment fixing requirement, simplify the pressure feed system, reduce system's investment, energy saving and consumption reduction finally realizes that the material is high-efficient, clean, energy-conserving strength pressure feed, satisfies the powder strength pressure feed needs that is briskly developing.

In particular to a pressure feed switching discharge valve which is characterized in that,

the device comprises a shell, a mounting flange, a pipeline connecting flange, a shell top cover, a deflector rod, a cylinder, a mounting bracket, a downward-rotating striker plate, a straight-through pipe and an exhaust pipe;

the lower end of the shell is provided with an installing flange, the upper end of the shell is provided with a shell top cover, the two sides of the shell are respectively provided with a pipeline connecting flange, the pressure-feeding switching discharge valve is arranged on a feed inlet flange at the top of the discharge bin through the installing flange on the shell, the pipeline connecting flanges at the two sides of the shell are respectively connected into a pressure-feeding pipeline system,

the cylinder is arranged on the top cover of the shell through the mounting bracket, the top of a cylinder arm of the cylinder is connected with a dial assembled at the center of the top cover of the shell and drives the dial to move, a straight-through pipe is arranged in the shell, the center of the straight-through pipe is fixedly connected to a rotating shaft of the dial, the straight-through pipe rotates through the rotation of the rotating shaft of the dial, one side of the straight-through pipe abuts against and is provided with a downward-rotation baffle plate, and the other side of the straight-; the upper part of the exhaust pipe is welded with the straight-through pipe into a whole, the lower end of the exhaust pipe extends into the discharging bin, and the side surface of the exhaust pipe is provided with a round hole with the same diameter as the pipeline on the two sides of the shell.

Further, the lower rotary material baffle is of an arc-shaped plate structure.

The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.

Has the advantages that:

1. the reversing, material gas separation and discharging functions are integrated, so that an important discharging link in the whole powder pneumatic pressure conveying system is simplified;

2. the unloading double-way valve for switching the bin top when a plurality of unloading bins are connected in series in the pressure conveying pipe network is replaced;

3. the device has the function of separating material and gas, and a flat cloth bag pulse and an independent air suction net at the top of the bin are eliminated;

4. the material flow is switched to be fully pneumatically controlled, the valve steering is rapid and accurate, and the failure rate is low. The valve has good sealing performance, and materials are put in a bin under the action of the rotary material baffle plate and are separated out air carriers;

5. the whole pressure-feeding pipe network forms a loop, so that the conveyed materials are ensured to be pollution-free and loss-free;

6. when the device does not discharge, the materials and the gas can pass through the device directly, the section is unchanged, and the resistance of the device is not increased.

7. The equipment is convenient to install, the requirement on the top space of the discharging bin is low, the process flow design and the equipment arrangement are convenient, the floor height is saved, and the civil engineering investment is reduced.

The utility model discloses the pressure feed switches discharge valve has the material stream and switches, material gas autosegregation and the function of unloading fast, thereby simplify whole pressure feed system, cancel every two-way valve that switches position department, cancel the bandlet pulse dust collector on every discharging material silo roof, a set of tail gas collection pipe network that induced drafts has been cancelled, and the compressed air and the material that carry the material after the separation when advancing the storehouse, can get back to in initial material granting storehouse along the pressure feed pipeline, form whole pressure feed pipe network return circuit, compressed air can recycle, reduce and discharge, environmental protection and sanitation, energy saving and consumption reduction. The pneumatic pressure-feed unloading switching equipment is small in size, is particularly suitable for being mounted on the top of a bin, adopts a pneumatic control valve, is rapid and reliable in steering, and is safe and reliable.

Description of the drawings:

fig. 1 is a schematic view of the unloading operation state of the pressure feed switching unloading valve on the closed storage bin B.

Fig. 2 is the schematic view of the unloading operation state of the pressure feed switching unloading valve on the closed storage bin a of the utility model.

Fig. 3 is a front view of the pressure-feed switching discharge valve of the present invention.

Fig. 4 is a top view of fig. 3.

Fig. 5 is a schematic view a-a of the pressure feed switching discharge valve of fig. 3 in a discharge state.

Fig. 6 is a schematic view a-a of the pressure feed switching discharge valve straight-through state of fig. 3.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, common embodiments of the present invention will be described in further detail with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

As shown in fig. 1-6: a closed bin A, a closed bin B, a discharge valve 40,

a feed direction 32, a tail gas direction 33, a feed gas mixture 34, a feed downspin path 35,

a pressure feed switching discharge valve 20 comprises a shell 1, a mounting flange 2, a pipeline connecting flange 3, a shell top cover 4, a deflector rod 5, a cylinder 6, a mounting bracket 7, a lower rotary striker plate 8, a straight-through pipe 9 and an exhaust pipe 10;

the lower end of a shell 1 is provided with an installing flange 2, the upper end of the shell is provided with a shell top cover 4, two sides of the shell are respectively provided with a pipeline connecting flange 3, a pressure-feeding switching discharge valve is arranged on a feed port flange at the top of a discharge bin through the installing flange 2 on the shell 1 so as to be connected with the feed port flange, the pipeline connecting flanges 3 at the two sides of the shell are respectively connected with a feed pipe 31 of a pressure-feeding pipeline system,

the cylinder 6 is arranged on the top cover 4 of the shell through an installation bracket 7, the top of a cylinder arm of the cylinder 6 is connected with a deflector rod 5 assembled at the center of the top cover of the shell and drives the deflector rod 5 to move, a straight-through pipe 9 is arranged in the shell, the center of the straight-through pipe is fixedly connected to a rotating shaft of the deflector rod, the straight-through pipe rotates through the rotation of the rotating shaft of the deflector rod, a downward-rotation baffle plate 8 is arranged on one side of the straight-through pipe in a propping manner, and an exhaust pipe; the upper part of the exhaust pipe 10 is welded with the straight-through pipe 9 into a whole, the lower end of the exhaust pipe extends into the discharging bin, and the side surface of the exhaust pipe is provided with a round hole with the same diameter as the pipeline on the two sides of the shell 1.

The downward-rotation material baffle 8 is of an arc-shaped plate structure, after materials with air are sprayed to the downward-rotation material baffle 8, the materials are centrifugally rotated downward into a discharging bin along an arc, and air is guided from an open opening at the lower part of the exhaust pipe 10 by negative pressure in a rear pipeline, enters a pressure feed pipeline from a round hole in the side face of the upper part of the exhaust pipe 10 and then is discharged.

The utility model provides a switch discharge valve for installing at the discharge bin top in powder strength pressure feed system, the powder that realizes carrying through the malleation subsides into the storehouse after the quick release of cang ding, the air current guide is got back to the pressure feed bin in simultaneously, cyclic utilization improves conveying efficiency, traditional switching has been simplified, dust collecting equipment, guarantee that the material is pollution-free, do not have and remain, it is extravagant not to cause the material loss, reduce equipment quantity simultaneously, can save the investment, reduce floor height, the cang ding of being convenient for installs.

The utility model discloses the application back of unloading valve is switched in the strength forced lubrication system to the forced lubrication, only needs 1 forced lubrication at every airtight feed bin top installation to switch the unloading valve. As shown in the figure, the pressure-feed switching discharge valves on the tops of all the bins are connected in series through the positive-pressure conveying pipe, and when the pressure-feed switching discharge valves on the closed bins A and the pressure-feed switching discharge valves on other closed bins in the system automatically switch to a 'straight-through' state according to process requirements, such as instructions sent by the electrical control of the system to feed materials to the closed bins B, namely, compressed air carries material flow to directly pass through the equipment, and the equipment is only a part of a pressure-feed pipeline; meanwhile, the pressure-feeding switching discharge valve on the closed bin B is opened in a discharging state, at the moment, materials enter the bin tangentially through a discharge baffle in the pressure-feeding switching discharge valve to be settled, and tail gas returns to the pressure-conveying pipeline along the exhaust pipe and then continuously moves back to the material discharge bin at the pressure-feeding starting point to form circular sealing. Similarly, if the material needs to be pressure-fed into the closed bin A, the pressure-feeding discharge valve at the top of the bin is opened to be in a 'discharging' state, and the closed bin B and other closed bins in the pressure conveying system are in a 'direct connection' state at the same time.

As shown in figure 2, the pressure-feed switching discharge valve is arranged on a flange of a feed port at the top of a discharge bin through a lower flange 2 on a shell 1, and flanges 3 on two sides of the shell are respectively connected into a pressure-feed pipeline system. When the electric control system sends an instruction to the pressure feeding and discharging valve to discharge materials, the solenoid valve controls the pneumatic valve to ventilate the cylinder 6, the cylinder 6 is installed on the top cover 4 of the shell through the installation support 7, and the cylinder arm moves to drive the deflector rod 5 to rotate the downward rotary type striker plate 8 to the direction of a discharging state. After air and material of certain pressure along left side flange 3, the material stream is along having the guide of the lower striker plate 8 that revolves of certain radian down, rotatory entering discharge bin in, because the mass density difference of material and air is very big, through rotatory lower rotation, the material revolves down after the circumferencial direction of lower striker plate 8 and air separation under the centrifugal force effect, along with the storehouse space enlargies suddenly, the material stream speed gathers suddenly and descends, and the material can subside rapidly and puts into the storehouse. Meanwhile, as the air-closing device is arranged at the outlet of the closed bin, the air flow in the closed bin cannot be discharged from the bottom of the bin, so that the air carrier with certain pressure is guided to be discharged from the exhaust pipe 10 extending into the discharge valve and then returned to the original feeding bin. Once the closed bin is full and the bin loading level indicator sends a signal, the system electric control system sends an instruction that the pressure-feed steering discharge valve stops working, the electromagnetic valve controls the pneumatic valve to switch the air inlet direction, the cylinder arm of the cylinder 6 retracts to drive the deflector rod 5 to horizontally reset the downward-rotating type striker plate 8 to be in a 'through' state, the through pipe 9 in the pressure-feed steering discharge valve is connected at this moment, and gas and materials can directly pass through the forward direction.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modification, change and equivalent changes made to the above embodiments according to the utility model all still belong to the protection scope of the technical scheme of the utility model.

Claims (2)

1. A pressure-feed switching discharge valve is characterized in that,

the device comprises a shell (1), a mounting flange (2), a pipeline connecting flange (3), a shell top cover (4), a deflector rod (5), a cylinder (6), a mounting bracket (7), a downward-rotation striker plate (8), a straight-through pipe (9) and an exhaust pipe (10);

the lower end of the shell (1) is provided with an installing flange (2), the upper end of the shell is provided with a shell top cover (4), two sides of the shell are respectively provided with a pipeline connecting flange (3), the pressure-feeding switching discharge valve is arranged on a feed inlet flange at the top of the discharge bin through the installing flange (2) on the shell (1), the pipeline connecting flanges (3) at the two sides of the shell are respectively connected into a pressure-feeding pipeline system,

the cylinder (6) is installed on the top cover (4) of the shell through an installing support (7), the top of a cylinder arm of the cylinder (6) is connected with a shifting lever (5) assembled at the center of the top cover of the shell and drives the shifting lever (5) to move, a straight-through pipe (9) is arranged inside the shell, the center of the straight-through pipe is fixedly connected to a rotating shaft of the shifting lever, the straight-through pipe rotates through the rotating shaft of the shifting lever, a lower rotary baffle plate (8) is arranged on one side of the straight-through pipe in a propping mode, the upper portion of the exhaust pipe (10) and the straight-through pipe (9) are welded into a whole, the lower end of the exhaust pipe stretches into the discharging bin, and.

2. The pressure-feed switching discharge valve according to claim 1, wherein said lower-rotation striker plate (8) has an arc-shaped plate-like structure.

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