Pneumatic flap valve for spray dryer

Abstract

The pneumatic flap valve comprises a valve body, the upper end of the valve body is fixedly connected with a guide plate, the bottom end of the valve body is fixedly connected with a guide opening, one side of the guide plate is provided with an operation groove, the side, located on the operation groove, of the guide plate is fixedly connected with a containing cavity, and one side of the valve body is fixedly connected with a pneumatic motor. A pneumatic motor is arranged on one side of the valve body, a rotating rod is fixedly connected to the output end of the pneumatic motor, a rotating plate is fixedly connected to one side of the rotating rod, a valve plate is fixedly connected to the upper end of the rotating plate, limiting plates are fixedly connected to the valve body and the guide plate, and limiting grooves are formed in the two sides of the valve body. And meanwhile, the first motor drives the gear roller to rotate to drive the rack and the concentric-square-shaped check block to move up and down and make contact with the valve plate, so that sealing of the valve plate is formed, the sealing effect is improved, the rotating valve plate is cleaned through the scraper, and the cleaning effect can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pneumatic flap valve, specifically relates to a pneumatic flap valve for spray drying machine. BACKGROUND

[0002] The spray drying machine is a kind of high-efficiency, fast drying equipment, and the four key stages of material liquid atomization, uniform mixing of mist drop and hot drying medium, mist drop evaporation drying and separation of drying product and drying medium are passed through, and the pneumatic flap valve is mainly used for controlling the in and out of material and the circulation of air in the spray drying machine, and the pneumatic flap valve can be used as feed valve in the spray drying process, controls the entering amount of material, and ensures the material concentration and drying effect in the spray drying machine.

[0003] In the process that the pneumatic flap valve contacts material and provides orientation, material can be adhered on the valve plate, and adhesion can be generated under subsequent conditions, which affects the closing effect of the valve plate.

[0004] According to the "a double flap valve discharging device based on spray drying machine cyclone" of Chinese patent publication No. CN115077239B, it is mainly described that only one driving motor is needed as driving force, the movement state of first flap and second flap is adjusted by the energization and de-energization of electromagnet, has simple structure, high energy utilization rate, clever cooperation between parts, convenient to use and strong practicality, and through the reciprocating rack plate, the threaded rod is driven to rotate reciprocatingly by the second transmission gear, the threaded rod rotating reciprocatingly can drive the connecting pipe and the pushing shell to move reciprocatingly by the nut block, the pushing shell moving reciprocatingly can drive the material on the surface of screen to move, to improve the screening effect and screening efficiency of material, and in the process that the pneumatic flap valve contacts material and provides orientation, material can be adhered on the valve plate, and adhesion can be generated under subsequent conditions, which affects the closing effect of the valve plate.

[0005] Therefore, a pneumatic flap valve for spray drying machine is proposed to solve the problem that in the process that the pneumatic flap valve contacts material and provides orientation, material can be adhered on the valve plate, and adhesion can be generated under subsequent conditions, which affects the closing effect of the valve plate. UTILITY MODEL CONTENTS

[0006] The utility model solves the technical problem that in the process that the pneumatic flap valve contacts material and provides orientation, material can be adhered on the valve plate, and adhesion can be generated under subsequent conditions, which affects the closing effect of the valve plate, and therefore a pneumatic flap valve for spray drying machine is proposed.

[0007] The utility model discloses a technical scheme that solves technical problems is adopted: a pneumatic flap valve for spray dryer, including valve body, the valve body upper end fixedly connected with the guide plate, the valve body bottom fixedly connected with the guide port, the guide plate one side is established with operation groove, the guide plate is located operation groove one side fixedly connected with the accommodation cavity, the valve body one side fixedly connected with the pneumatic motor, the pneumatic motor output fixedly connected with the rotating link, the rotating link one side fixedly connected with the rotating plate, the rotating plate upper end fixedly connected with the valve plate, the valve body with the guide plate all fixedly connected with the limit stop, the valve body both sides all are established with the limit slot, the valve body is located limit slot one side fixedly connected with first motor, first motor output fixedly connected with the gear roller, the gear roller one side is engaged with the rack, the valve body is contacted with the backstop, the backstop both sides all are established with the hidden groove and the rack is located in the hidden groove.

[0008] As a preferred technical scheme of the utility model, the valve body is fixedly connected with a baffle on the bottom side of the operation groove, the baffle corresponds to the rotating link, by setting the baffle, the guiding effect of the valve body can be increased, and the material can be prevented from entering the side of the accommodation cavity.

[0009] As a preferred technical scheme of the utility model, an arc-shaped groove is formed on the upper side of the baffle, and a plug is in contact with the baffle on the side of the arc-shaped groove, and the plug is fixedly connected to the side of the rotating link, by setting the plug, the sealing property can be increased.

[0010] As a preferred technical scheme of the utility model, a scraper is fixedly connected to the valve body on the upper side of the operation groove, and the scraper is in contact with the valve plate, by setting the scraper, the valve plate can be cleaned.

[0011] As a preferred technical scheme of the utility model, a pad is in contact with the valve plate, and the pad is fixedly connected to the bottom side of the backstop, by setting the pad, the sealing effect can be increased.

[0012] The utility model has the advantages that: by setting the pneumatic motor on the side of the valve body and driving the rotating link, the rotating plate and the valve plate to close the valve body, the closing of the valve body can be completed, at the same time, by driving the gear roller to rotate through the first motor, the rack and the backstop are driven to move up and down, and are in contact with the valve plate, so that the sealing of the valve plate is formed, the sealing effect is improved, and the valve plate is cleaned through the scraper, so that the cleaning effect can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a kind of pneumatic flap valve for spray dryer of a preferred embodiment of the utility model, and it is a side view structure schematic diagram of the pneumatic flap valve for spray dryer;

[0014] Figure 2 It is a kind of pneumatic flap valve for spray dryer of a preferred embodiment of the utility model, and it is a three-dimensional structure schematic diagram of the pneumatic flap valve for spray dryer.

[0015] Figure 3 is a three-dimensional structure schematic diagram of a back-shaped block of a pneumatic flap valve for a spray dryer according to a preferred embodiment of the utility model

[0016] Figure 4 is an enlarged structure schematic diagram of A of a pneumatic flap valve for a spray dryer according to a preferred embodiment of the utility model.

[0017] The figure mark is explained: 1, valve body;2, guide plate;3, containing cavity;4, rotating rod;5, rotating plate;6, valve plate;7, limit plate;8, guide port;9, back-shaped block;10, plug;11, scraper;12, limit groove;13, gear roller;14, rack;15, hidden groove;16, cushion block;17, baffle. Specific implementation

[0018] The utility model is further explained below in combination with the drawings.

[0019] Please combine with the pneumatic flap valve for a spray dryer shown in Figures 1-4 , including valve body 1, the upper end fixedly connected with guide plate 2 of valve body 1, the bottom fixedly connected with guide port 8 of valve body 1, the one side of guide plate 2 is equipped with operating groove, and guide plate 2 is fixedly connected with containing cavity 3 at operating groove side, and the one side fixedly connected with pneumatic motor of valve body 1 is started motor, and compressed air enters into pneumatic motor, will drive the piston inside movement, thereby with compressed air conversion mechanical energy, and drive rotating rod 4 with rotary motion, the one side fixedly connected with rotating plate 5 of rotating rod 4, the upper end fixedly connected with valve plate 6 of rotating plate 5, and the limit plate 7 is fixedly connected on valve body 1 and guide plate 2, and limit plate 7 contacts valve plate 6, can provide the limit of valve plate 6, and the limit groove 12 is equipped on both sides of valve body 1, and the first motor is fixedly connected with the limit groove 12 side of valve body 1, and the first motor drives gear roller 13 and rack 14 rotation, can drive back-shaped block 9 rotation, thereby under the condition that gear roller 13 and rack 14 contact, can promote back-shaped block 9 to move up and down, and promote back-shaped block 9 and valve plate 6 are in the effect of contact, thereby reduce the rotary friction of valve plate 6, the output end fixedly connected with gear roller 13 of first motor, the one side of gear roller 13 is engaged with rack 14, and the back-shaped block 9 is contacted in valve body 1, and the hidden groove 15 is equipped on both sides of back-shaped block 9 and rack 14 is located in hidden groove 15.

[0020] Among them, rotating rod 4 corresponds with baffle 17, and baffle 17 is fixedly connected at the operating groove bottom side of valve body 1, and by setting baffle 17, can increase the sealing property of one side of valve body 1.

[0021] The rotation rod 4 is fixedly connected with the blocking strip 10 on one side, the blocking strip 10 is in contact with one side of the baffle 17 close to the arc-shaped groove, the arc-shaped groove is located on the upper side of the baffle 17, the blocking strip 10 is arranged, the connection between the rotation rod 4 and the baffle 17 is increased, and the sealing effect is improved.

[0022] The valve plate 6 is in contact with the scraping plate 11, the scraping plate 11 is fixedly connected to the upper side of the operation groove of the valve body 1, the scraping plate 11 is arranged, and the surface of the valve plate 6 can be cleaned when the valve plate 6 rotates.

[0023] The bottom side of the back-shaped blocking block 9 is fixedly connected with the pad 16, the pad 16 is in contact with the upper side of the valve plate 6, and the sealing effect is improved through the arrangement of the pad 16.

[0024] Working principle: liquid material is placed into the upper side of the valve body 1, the liquid material automatically falls under the action of gravity, then is guided by the guide plate 2, and then falls on the valve plate 6; when the valve plate 6 needs to be closed, the rotary rod 4 is driven to rotate by the pneumatic motor, the rotary plate 5 and the valve plate 6 are driven to rotate, one end of the valve plate 6 moves to the left side and is in contact with the limiting plate 7, the gear roller 13 is driven to rotate by the first motor, the bottom side of the back-shaped blocking block 9 is in contact with the valve plate 6 due to the relationship of the rack 14, the upper side of the valve plate 6 is in contact with and presses the pad 16, and the tightness during connection is improved; when the valve body 1 needs to be opened, the first motor is reversed, and the back-shaped blocking block 9 moves upwards; at this time, the valve plate 6 is no longer in contact with the bottom side of the back-shaped blocking block 9, then the valve plate 6 rotates to the right, and is cleaned by the scraping plate 11, so that the material is prevented from sticking, and the tightness of the closed valve plate 6 is maintained.

[0025] The preferred embodiments of the utility model are described above, and it should be pointed out that, for ordinary technical personnel in the technical field, some improvements and decorations can be made without departing from the principle of the utility model, and these improvements and decorations should also be regarded as the protection range of the utility model.

[0026] Other parts not described in the utility model are all prior art, so they will not be described here.

[0027] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical scheme of the utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, ordinary technical personnel in the field should understand that: the technical scheme recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the range of the technical scheme of the embodiments of the utility model.

Claims

1. A pneumatic flap valve for a spray dryer, comprising a valve body (1), a guide plate (2) is fixedly connected to the upper end of the valve body (1), a guide port (8) is fixedly connected to the bottom end of the valve body (1), characterized in that, The operating slot is formed on one side of the guide plate (2), the containing cavity (3) is fixedly connected on one side of the guide plate (2) located at the operating slot side, the pneumatic motor is fixedly connected on one side of the valve body (1), the rotating rod (4) is fixedly connected on the output end of the pneumatic motor, the rotating plate (5) is fixedly connected on one side of the rotating rod (4), the valve plate (6) is fixedly connected on the upper end of the rotating plate (5), the limiting plate (7) is fixedly connected on the valve body (1) and the guide plate (2), the limiting slot (12) is formed on both sides of the valve body (1), the first motor is fixedly connected on one side of the valve body (1) located at the limiting slot (12) side, the gear roller (13) is fixedly connected on the output end of the first motor, the rack (14) is engaged on one side of the gear roller (13), the back-shaped stopper (9) is contacted in the valve body (1), the hidden slot (15) is formed on both sides of the back-shaped stopper (9) and the rack (14) is located in the hidden slot (15).

2. A pneumatic flap valve for a spray dryer as defined in claim 1, characterized in that The baffle (17) is fixedly connected on the bottom side of the valve body (1) located at the operating slot side.

3. A pneumatic flap valve for a spray dryer as defined in claim 2, characterized in that The arc-shaped slot is formed on the upper side of the baffle (17), the plug strip (10) is contacted on one side of the baffle (17) located at the arc-shaped slot side, and the plug strip (10) is fixedly connected on one side of the rotating rod (4).

4. A pneumatic flap valve for a spray dryer as defined in claim 1, characterized in that The scraper (11) is fixedly connected on the upper side of the valve body (1) located at the operating slot side.

5. A pneumatic flap valve for a spray dryer as defined in claim 4, characterized in that The gasket (16) is contacted on the valve plate (6), and the gasket (16) is fixedly connected on the bottom side of the back-shaped stopper (9).

Images