Negative pressure drying machine

Abstract

The utility model relates to the technical field of drying machines, and discloses a negative pressure drying machine which comprises a drying cylinder, a cover plate is fixedly connected to the top of the drying cylinder, an air inlet is formed in one side of the drying cylinder, an air inducing block is connected to the surface of the air inlet in a penetrating mode, and a first guide pipe is connected to the surface of the air inducing block in a penetrating mode. And one end of the first conduit is communicated to the output end of the heater body. According to the spray type negative pressure drying machine, through the arrangement of the drying cylinder, the air inducing block, the first guide pipe, the heater body, the air blower, the fourth guide pipe and the cyclone separator, raw materials are poured into the storage barrel and flow to the atomizer body, the atomized raw materials are sprayed in the drying cylinder, and meanwhile the air blower and the heater are started; air sucked by the air blower is blown into the drying cylinder through the heater body, atomized raw materials in the drying cylinder are dried, and meanwhile air can be blown by the first guide pipe through the fourth guide pipe connected to the first guide pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of dryers, in particular to a negative pressure dryer. Background Art

[0002] Spray negative pressure dryer is a kind of drying equipment widely used in pharmaceutical, food, chemical and other industries. It uses spray technology to spray the material into the drying chamber in the form of droplets, and evaporates the moisture in the material through the action of hot air, so that the material is dried quickly.

[0003] Among them, Chinese patent (CN207237317U) discloses a spray-type negative pressure dryer, including a dryer body, an air outlet pipe, a feed pipe, an air inlet, an air heater, a blower, a first air inlet pipe, a first filter, an air distributor, a second air inlet pipe, a pressure pump, a discharge pipe, a heater, a first discharge pipe, a cyclone separator, a second discharge pipe, an exhaust fan, a second filter, an atomizer and a control panel. The dryer body is composed of a separation box body, a U-shaped drying pipe, a storage tank, a first box body and a second box body. A control panel is installed on one side of the first box body, a storage tank is installed on the top of the first box body, a feed pipe is installed on the top of the storage tank, and the bottom inner wall of the storage tank is connected to the first box body through the discharge pipe through the top of the first box body, and the second filter and the atomizer are installed inside the discharge pipe. The dryer is conducive to fully drying the material and improving the purity of the material.

[0004] The shortcomings of the spray-type negative pressure dryer in the above-mentioned comparative document are: the air is discharged from the U-shaped drying tube, which causes the hot air and air with particles to be directly discharged into the atmosphere, which not only wastes heat energy, but also causes environmental pollution and energy waste;

[0005] For this reason we designed a negative pressure dryer. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] The technical problem solved by the utility model is to provide a negative pressure dryer which is highly practical, can be easily operated and has a relatively simple structure, thereby solving the problem of directly discharging hot air and air with particles into the atmosphere proposed in the above-mentioned background technology.

[0008] (II) Technical solution

[0009] To achieve the above objectives, the utility model is implemented through the following technical solutions: a negative pressure dryer, comprising a drying cylinder, a cover plate is fixedly connected to the top of the drying cylinder, an air inlet is opened on one side of the drying cylinder, an air induced block is connected through the surface of the air inlet, a first conduit is connected through the surface of the air induced block, one end of the first conduit is connected to the output end of a heater body, a drying cylinder is fixedly connected to the bottom of the heater body, the input end of the heater body is connected to a second conduit, one end of the second conduit is connected to the output end of a blower, and the bottom of the blower is fixedly connected to one side of the top of the drying cylinder.

[0010] Optionally, the input end of the blower is connected to a third conduit, and one end of the third conduit is connected through a filter cartridge, which can filter foreign matter in the air sucked in by the blower.

[0011] Optionally, a fourth duct is connected through the surface of the first duct, and when the first duct transports air to the interior of the drying cylinder, a siphon effect is generated on the fourth duct, and one end of the fourth duct is connected to the output end of the cyclone separator body.

[0012] Optionally, the input end of the cyclone separator body is connected to an L-shaped tube, and the L-shaped tube passes through the drying cylinder to the center thereof, and an opening at one end of the L-shaped tube is located below the drying cylinder.

[0013] Optionally, a circular hole is opened at the center of the top of the cover plate, a storage barrel is inserted into the surface of the circular hole, and an atomizer body is connected to the bottom of the circular hole. The raw materials in the storage barrel can be atomized and sprayed into the drying cylinder through the atomizer body.

[0014] Optionally, a baffle is fixedly connected to the bottom of the drying cylinder, and a collecting bucket is plugged into the bottom of the baffle, and the collecting bucket can collect the dried raw materials.

[0015] (III) Beneficial effects

[0016] The utility model provides a negative pressure dryer, which has the following beneficial effects:

[0017] The spray type negative pressure dryer pours the raw material into the storage barrel through the arrangement of the drying cylinder, the induced air block, the first conduit, the heater body, the blower, the fourth conduit and the cyclone separator, circulates the raw material to the atomizer body, sprays the atomized raw material in the drying cylinder, and turns on the blower and the heater at the same time, so that the wind sucked by the blower is blown to the inside of the drying cylinder through the heater body, and the atomized raw material in the drying cylinder is dried. At the same time, the fourth conduit connected to the first conduit is blown by the first conduit to form a siphon, so that the L-shaped tube at the input end of the cyclone separator is not dried and the smaller raw material is formed in the drying cylinder, and the larger raw material is dropped into the collecting barrel, and then the smaller raw material and the light mist material are separated by the cyclone separator, and the light mist material is siphoned by the first conduit along the fourth conduit, and re-enters the drying cylinder for drying, thereby reducing the light mist material in the exhaust air, and playing a role in preventing the hot air and the air with particles from being directly discharged into the atmosphere, thereby improving the drying effect of the device and reducing the pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the cover structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the overall front view structure of the utility model.

[0022] In the figure: 1. drying cylinder; 2. cover plate; 3. induced draft block; 4. first duct; 5. heater body; 6. second duct; 7. blower; 8. third duct; 9. filter cylinder; 10. fourth duct; 11. cyclone separator body; 12. L-shaped tube; 13. storage barrel; 14. atomizer body; 15. collection barrel. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in 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] See also Figures 1 to 4The utility model provides a technical solution: a negative pressure dryer, comprising a drying cylinder 1, a cover plate 2 is fixedly connected to the top of the drying cylinder 1, an air inlet is opened on one side of the drying cylinder 1, an air inlet is connected to the surface of the air inlet, a first conduit 4 is connected to the surface of the air inlet, one end of the first conduit 4 is connected to the output end of a heater body 5, the bottom of the heater body 5 is fixedly connected to the drying cylinder 1, the input end of the heater body 5 is connected to a second conduit 6, one end of the second conduit 6 is connected to the output end of a blower 7, the bottom of the blower 7 is fixedly connected to one side of the top of the drying cylinder 1, the raw material is poured into a storage barrel 13, circulated to an atomizer body 14, the atomized raw material is sprayed in the drying cylinder 1, and the blower 7 and the heater are turned on at the same time to make the blower The wind sucked by the fan 7 is blown into the interior of the drying cylinder 1 through the heater body 5 to dry the atomized raw materials in the drying cylinder 1. At the same time, the fourth conduit 10 connected to the first conduit 4 is blown by the first conduit 4 to form a siphon, so that the L-shaped tube 12 at the input end of the cyclone separator is not dried and the smaller raw materials are formed in the drying cylinder 1, and the larger raw materials are dropped into the collecting bucket 15, and then the smaller raw materials and light mist materials are separated by the cyclone separator. The light mist materials are siphoned by the first conduit 4 along with the fourth conduit 10 and re-enter the drying cylinder 1 for drying, reducing the light mist materials in the exhaust air, playing a role in preventing the hot air and the air with particles from being directly discharged into the atmosphere, improving the drying effect of the device, and reducing the pollution to the environment;

[0025] The input end of the blower 7 is connected to the third conduit 8, and one end of the third conduit 8 is connected with a filter cartridge 9, which can filter foreign matter in the air sucked in by the blower 7;

[0026] The surface of the first conduit 4 is connected with a fourth conduit 10, and when the first conduit 4 delivers air to the interior of the drying cylinder 1, a siphon effect is generated on the fourth conduit 10, and one end of the fourth conduit 10 is connected to the output end of the cyclone separator body 11;

[0027] The input end of the cyclone separator body 11 is connected to the L-shaped tube 12, and the L-shaped tube 12 passes through the drying cylinder 1 to the center thereof, and the opening of one end of the L-shaped tube 12 is located below the drying cylinder 1;

[0028] A circular hole is opened at the center of the top of the cover plate 2, a material storage barrel 13 is inserted into the surface of the circular hole, and an atomizer body 14 is connected to the bottom of the circular hole. The raw materials in the material storage barrel 13 can be atomized and sprayed into the drying cylinder 1 through the atomizer body 14;

[0029] A baffle is fixedly connected to the bottom of the drying cylinder 1, and a collecting bucket is plugged into the bottom of the baffle, and the collecting bucket can collect the dried raw materials.

[0030] In the utility model, the working steps of the device are as follows:

[0031] Step 1: Pour the raw material into the storage barrel 13, circulate it to the atomizer body 14, spray the atomized raw material in the drying cylinder 1, and turn on the blower 7 and the heater at the same time, so that the wind sucked by the blower 7 is blown to the inside of the drying cylinder 1 through the heater body 5, and the atomized raw material in the drying cylinder 1 is dried. At the same time, the fourth conduit 10 connected to the first conduit 4 will be blown by the first conduit 4 to form a siphon, so that the L-shaped tube 12 at the input end of the cyclone separator is not dried and formed in the drying cylinder 1. Smaller raw materials, while larger formed raw materials fall into the collecting barrel 15, and then the cyclone separator separates smaller raw materials and light mist materials, and the light mist materials are siphoned by the first conduit 4 along the fourth conduit 10, and re-enter the drying cylinder 1 for drying, thereby reducing the light mist materials in the exhaust air;

[0032] The second step: the raw materials dried inside the drying cylinder 1 will fall into the collecting barrel 15, and the smaller raw materials after passing through the cyclone separator body 11 will also fall into the collecting box at the bottom thereof for collection.

[0033] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0034] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0035] 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 negative pressure dryer, comprising a drying cylinder (1), characterized in that: The top of the drying cylinder (1) is fixedly connected to a cover plate (2); one side of the drying cylinder (1) is provided with an air inlet; the surface of the air inlet is connected through an air induction block (3); the surface of the air induction block (3) is connected through a first conduit (4); one end of the first conduit (4) is connected to an output end of a heater body (5); the bottom of the heater body (5) is fixedly connected to the drying cylinder (1); the input end of the heater body (5) is connected to a second conduit (6); one end of the second conduit (6) is connected to an output end of a blower (7); the bottom of the blower (7) is fixedly connected to one side of the top of the drying cylinder (1).

2. A negative pressure dryer according to claim 1, characterized in that: The input end of the blower (7) is connected to the third conduit (8), and one end of the third conduit (8) is connected through a filter cartridge (9).

3. A negative pressure dryer according to claim 1, characterized in that: A fourth conduit (10) is connected through the surface of the first conduit (4), and one end of the fourth conduit (10) is connected to the output end of the cyclone separator body (11).

4. A negative pressure dryer according to claim 3, characterized in that: The input end of the cyclone separator body (11) is connected to an L-shaped tube (12), and the L-shaped tube (12) passes through the drying cylinder (1) to the center thereof.

5. A negative pressure dryer according to claim 1, characterized in that: A circular hole is provided at the center of the top of the cover plate (2), a material storage barrel (13) is inserted into the surface of the circular hole, and an atomizer body (14) is connected through the bottom of the circular hole.

6. A negative pressure dryer according to claim 1, characterized in that: The bottom of the drying cylinder (1) is fixedly connected with a baffle, and the bottom of the baffle is plugged with a collecting bucket (15).

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