Rotary valve for spray dryer

Abstract

The utility model discloses a rotary valve for a spray dryer, which comprises a valve body, two sides of the valve body are respectively provided with a sealing side cover through bolts, the interiors of the two sealing side covers are rotatably connected with a valve shaft, and the bottom of the valve body is fixedly connected with a discharge pipe. According to the spray dryer, the sealing plate in the discharging pipe is matched with the sealing groove in the inner side of the discharging pipe, the discharging pipe is sealed, the spray dryer and the valve body are sealed, leakage is avoided, a worm, a worm gear and a rotating rod are arranged, the output end of the motor drives the worm to rotate, and the discharging pipe is sealed. When the worm rotates, the meshed worm wheel is driven to rotate, when the worm wheel rotates, the rotating rod on the inner side is driven to rotate, the rotating rod drives the valve shaft at one end to rotate, and the valve shaft is driven and adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to rotary valve technical field, concretely is a kind of rotary valve for spray dryer. BACKGROUND

[0002] Spray dryer is a kind of device that can complete drying and granulation simultaneously, belongs to one kind of continuous normal pressure dryer. It utilizes special equipment to spray liquid material into mist, makes it contact with hot air and is dried, and spray dryer has multiple types, including electric heating air-drying oven, vacuum drying oven, high-speed centrifugal spray dryer, sterile spray dryer etc., and spray dryer rotary valve is a kind of common powder conveying equipment, it is mainly used to control the flow of inlet and outlet and maintain the airtightness of system, in spray drying process, the opening and closing state of inlet and outlet can be controlled by rotary valve, so as to control the gas flow and powder flow in spray dryer, ensure that the dry powder meets the requirements, but the existing spray dryer rotary valve can appear the situation of poor sealing, gas in spray dryer and material in valve body leak out, without plugging structure for secondary closure. SUMMARY

[0003] The utility model discloses a kind of rotary valves for spray dryer, to solve the problem that the existing spray dryer rotary valve can appear the situation of poor sealing in the above background technology, gas in spray dryer and material in valve body leak out, without plugging structure for secondary closure.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of rotary valve for spray dryer, including valve body, the both sides of the valve body are equipped with closed side cover by bolt, the inside rotationally connected of two closed side cover has valve shaft, the bottom of the valve body is fixedly connected with discharge pipe, the inside of the discharge pipe is equipped with closed groove, the inside of the discharge pipe is slidably connected with the closed plate matched with closed groove, the outside of the discharge pipe is fixedly connected with fixed side frame, the side of the fixed side frame is equipped with pneumatic cylinder, the output of the pneumatic cylinder is fixedly connected with adjusting plate, the side of the adjusting plate is fixedly connected with moving plate, the moving plate is slidably connected with fixed side frame, the side of the moving plate is fixedly connected with closed plate.

[0005] As a preferred scheme of the utility model: the side of the discharge pipe is fixedly connected with fixed side plate, the top of the fixed side plate is fixedly connected with fixed support, the top of the fixed support is fixedly connected with fixed box, one end of the valve shaft is rotationally connected with fixed box.

[0006] As one preferred scheme of the utility model: the inside of the fixed box is rotatably connected with a rotating rod, one end of the rotating rod is fixedly connected with a valve shaft, the outside of the rotating rod is fixedly connected with a worm wheel, the inside of the fixed box is rotatably connected with a worm, the worm is meshed with the worm wheel, the top of the fixed box is provided with a motor, and the output end of the motor is fixedly connected with the worm.

[0007] As one preferred scheme of the utility model: the top of the valve body is fixedly connected with a feeding pipe.

[0008] As one preferred scheme of the utility model: the inside of one of the closed side covers is provided with a maintenance opening, and the inside of the maintenance opening is provided with a maintenance cover plate.

[0009] As one preferred scheme of the utility model: the two sides of the maintenance cover plate are fixedly connected with side mounting plates, and one of the closed side covers is connected with the side mounting plate through bolts.

[0010] Compared with the prior art, the utility model has the beneficial effects that: the utility model is closed through the cooperation between the closing plate in the discharge pipe and the closing groove on the inside of the discharge pipe, the discharge pipe is closed, the spray dryer and the valve body are closed, the leakage is avoided, the worm, the worm wheel and the rotating rod are arranged, the output end of the motor drives the worm to rotate, the worm drives the meshed worm wheel to rotate when rotating, the worm wheel drives the rotating rod on the inside to rotate when rotating, the rotating rod drives the valve shaft at one end to rotate, and the valve shaft is driven and adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is an internal structure schematic view of the utility model;

[0012] Figure 2 It is the utility model Figure 1 It is an enlarged view of A in the utility model;

[0013] Figure 3 It is the left view of the utility model.

[0014] In the drawing: 1, valve body; 2, feeding pipe; 3, discharge pipe; 4, fixed side plate; 5, fixed support; 6, fixed box; 7, worm; 8, rotating rod; 9, worm wheel; 10, valve shaft; 11, motor; 12, closed side cover; 13, maintenance cover plate; 14, side mounting plate; 15, fixed side frame; 16, air cylinder; 17, adjusting plate; 18, moving plate; 19, closing plate; 20, closing groove; 21, maintenance opening. DETAILED DESCRIPTION

[0015] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0016] Please refer to Figures 1 to 3 The utility model provides a kind of technical scheme: a rotary valve for spray dryer, including valve body 1, both sides of valve body 1 are equipped with closed side cover 12 by bolt, the inside rotation of two closed side covers 12 is connected with valve shaft 10, the bottom of valve body 1 is fixedly connected with discharge pipe 3, the inside of discharge pipe 3 is equipped with closed groove 20, the inside of discharge pipe 3 is slidably connected with closed plate 19 matched with closed groove 20, the outside of discharge pipe 3 is fixedly connected with fixed side frame 15, one side of fixed side frame 15 is equipped with cylinder 16, the output end of cylinder 16 is fixedly connected with adjusting plate 17, one side of adjusting plate 17 is fixedly connected with moving plate 18, moving plate 18 is slidably connected with fixed side frame 15, one side of moving plate 18 is fixedly connected with closed plate 19, the output end of cylinder 16 drives adjusting plate 17, moving plate 18 and closed plate 19 to move outward, cancel the plugging of discharge pipe 3, complete discharging, adjust the opening and closing state of closed plate 19 inside discharge pipe 3.

[0017] Among them, one side of discharge pipe 3 is fixedly connected with fixed side plate 4, the top of fixed side plate 4 is fixedly connected with fixed support 5, the top of fixed support 5 is fixedly connected with fixed box 6, one end of valve shaft 10 is rotationally connected with fixed box 6, the top of fixed support 5 is supported by fixed side plate 4, the top of fixed box 6 is supported and fixed by fixed support 5.

[0018] Among them, the inside of fixed box 6 is rotationally connected with rotating rod 8, one end of rotating rod 8 is fixedly connected with valve shaft 10, the outside of rotating rod 8 is fixedly connected with worm wheel 9, the inside of fixed box 6 is rotationally connected with worm gear 7, worm gear 7 is meshingly connected with worm wheel 9, the top of fixed box 6 is equipped with motor 11, the output end of motor 11 is fixedly connected with worm gear 7, the output end of motor 11 drives worm gear 7 to rotate and adjust, when worm gear 7 rotates, meshed worm wheel 9 is driven to rotate, the work that worm wheel 9 drives valve shaft 10 to rotate synchronously through inside rotating rod 8 is completed.

[0019] Among them, the top of valve body 1 is fixedly connected with feed pipe 2, feeding is carried out to valve body 1 through feed pipe 2.

[0020] The inside of one of the closed side covers 12 is provided with a maintenance opening 21, and a maintenance cover plate 13 is arranged on the inside of the maintenance opening 21, and the maintenance opening 21 is closed by the maintenance cover plate 13, and the inside of the valve body 1 can be maintained by removing the maintenance cover plate 13.

[0021] The maintenance cover plate 13 is fixedly connected with side mounting plates 14 on both sides, one of the closed side covers 12 is connected with the side mounting plates 14 through bolts, and the side mounting plates 14 are connected with the closed side covers 12 through bolts, and the maintenance cover plate 13 can be removed from one side of the maintenance opening 21 by disassembling the bolts.

[0022] Specifically, in use, the valve body 1 is fed through the feeding pipe 2, and the motor 11 drives the worm 7 to rotate through the power supply, and the worm 7 drives the meshed worm wheel 9 to rotate, and the worm wheel 9 drives the valve shaft 10 to rotate through the rotating rod 8 on the inside, the material in the valve body 1 is fed, and the material is discharged through the discharge pipe 3 at the bottom of the valve body 1, the adjusting plate 17, the moving plate 18 and the closing plate 19 are driven to move outward through the output end of the cylinder 16, the discharge pipe 3 is unblocked, the bolts between the side mounting plates 14 and the closed side covers 12 are removed, the maintenance cover plate 13 is removed, and the maintenance work of the valve shaft 10 in the valve body 1 is completed.

[0023] In the description of the present application, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0024] In addition, the terms "first", "second", "third", "fourth" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implying the number of the indicated technical features, so that the features limited by "first", "second", "third" and "fourth" can be explicitly or implicitly included at least one of the features.

[0025] In the utility model, unless another definite provision and limitation, the term "installation", "arrangement", "connection", "fixation", "screw connection" and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can indirectly connect through intermediate medium, can be two element inside's intercommunication or two element's mutual action relation, unless another definite limitation, for the ordinary skill of the art, can understand the above-mentioned term in the utility model specific meaning according to specific circumstances.

[0026] Although the embodiments of the utility model have been shown and described, it will be appreciated by those of ordinary skill in the art that various changes, modifications, alternatives, and variations can be made thereto without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A rotary valve for a spray dryer, comprising a valve body (1), characterized in that Both sides of the valve body (1) are provided with closed side covers (12) through bolt mounting, the inside of the two closed side covers (12) is rotatably connected with a valve shaft (10), the bottom of the valve body (1) is fixedly connected with a discharge pipe (3), the inner side of the discharge pipe (3) is provided with a closed groove (20), the inside of the discharge pipe (3) is slidably connected with a closed plate (19) matched with the closed groove (20), the outer side of the discharge pipe (3) is fixedly connected with a fixed side frame (15), one side of the fixed side frame (15) is provided with a pneumatic cylinder (16), the output end of the pneumatic cylinder (16) is fixedly connected with an adjusting plate (17), one side of the adjusting plate (17) is fixedly connected with a moving plate (18), the moving plate (18) is slidably connected with the fixed side frame (15), one side of the moving plate (18) is fixedly connected with the closed plate (19).

2. A rotary valve for a spray dryer as claimed in claim 1, characterized in that: One side of the discharge pipe (3) is fixedly connected with a fixed side plate (4), the top of the fixed side plate (4) is fixedly connected with a fixed support (5), the top of the fixed support (5) is fixedly connected with a fixed box (6), one end of the valve shaft (10) is rotatably connected with the fixed box (6).

3. A rotary valve for a spray dryer as claimed in claim 2, characterized in that: The inside of the fixed box (6) is rotatably connected with a rotating rod (8), one end of the rotating rod (8) is fixedly connected with the valve shaft (10), the outer side of the rotating rod (8) is fixedly connected with a worm wheel (9), the inside of the fixed box (6) is rotatably connected with a worm (7), the worm (7) is meshedly connected with the worm wheel (9), the top of the fixed box (6) is provided with a motor (11), the output end of the motor (11) is fixedly connected with the worm (7).

4. A rotary valve for a spray dryer as defined in claim 1, characterized in that: The top of the valve body (1) is fixedly connected with a feed pipe (2).

5. A rotary valve for a spray dryer as defined in claim 1, characterized in that: The inside of one of the closed side covers (12) is provided with a maintenance opening (21), the inner side of the maintenance opening (21) is provided with a maintenance cover plate (13).

6. A rotary valve for a spray dryer as claimed in claim 5, characterized in that: Both sides of the maintenance cover plate (13) are fixedly connected with side mounting plates (14), one of the closed side covers (12) is connected with the side mounting plates (14) through bolts.

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