Cooling device for spray drying

Abstract

The utility model discloses a cooling device for spray drying, which comprises a cooling cylinder, a cooling component, an air outlet component and a buffer component, a first pneumatic butterfly valve is arranged at the top of the cooling cylinder, a second pneumatic butterfly valve is arranged at the bottom of the cooling cylinder, the cooling component is arranged in the middle of the cooling cylinder, and the cooling component comprises a water cooling part and an air cooling part. The cooling assembly is used for cooling the particulate matter. Through the design of the cooling cylinder, the first pneumatic butterfly valve, the second pneumatic butterfly valve, the water cooling piece, the air cooling piece, the air outlet assembly and the buffer assembly, the arranged water cooling piece is used for conveying cooling water into the cooling cylinder through a pipeline, and the arranged air cooling piece is used for blowing dry cooling air into the cooling cylinder; the cooling cylinder is arranged at the discharging port of the spray drying equipment, when materials enter the cooling cylinder, the materials are cooled through the water cooling piece and the air cooling piece, and the situation that the temperature of the materials is higher than the indoor temperature is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to cooling device technical field, especially relates to a cooling device for spray drying. BACKGROUND

[0002] Spray drying equipment is widely used in chemical industry, food industry, pharmaceutical industry, mineral and metal processing, environmental protection and waste treatment industries. Through these industries, liquid materials need to be dried or granulated, and spray drying technology becomes the preferred technology due to its high efficiency, uniformity and environmental protection. The slurry is sent to the centrifugal atomizer or two-fluid atomizer gun of the dryer, so that it forms mist droplets, which are fully contacted with hot air in the drying chamber, and the water on the surface of the droplets is rapidly evaporated to dry the product.

[0003] In actual production process, in order to ensure the drying of the outlet particles, the temperature is usually higher than room temperature, especially in chemical and mineral metal processing industry, the outlet temperature is higher than 100 DEG C, the powder particles still in high temperature stage leave the tower and contact with water vapor in outdoor air, which quickly liquefies water and wraps the surface of the particles, causing water enrichment, losing the meaning of drying, and the excessive moisture will form product agglomeration, weaken the uniform loose effect, cause performance attenuation, and cannot meet the product quality control requirements. At the same time, due to the high temperature of the dried particles, the common plastic packaging film bag is easily damaged during direct packaging process, resulting in packaging damage, product dampness and quality problems. Therefore, the present scheme provides a cooling device for spray drying to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a cooling device for spray drying to solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a cooling device for spray drying, comprising:

[0006] A cooling cylinder is provided with a first pneumatic butterfly valve at the top, and a second pneumatic butterfly valve at the bottom;

[0007] A cooling assembly is arranged in the middle of the cooling cylinder, which comprises a water cooling part and an air cooling part, and is used for cooling the particles;

[0008] An air outlet assembly is arranged at the top of the cooling cylinder, which is used for discharging the gas in the cooling cylinder;

[0009] A buffer assembly is connected to the inside of the cooling cylinder, which is used for buffering the falling of the particles.

[0010] Preferably, the water cooling part comprises a cooling water pipe connected in the middle of the cooling cylinder.

[0011] Preferably, the air cooling part comprises air inlet pipes symmetrically connected on both sides of the cooling cylinder, and one end of the air inlet pipe is fixedly connected with a nozzle.

[0012] Preferably, the air cooling part comprises nozzles symmetrically connected on both sides of the cooling cylinder, and one end of the nozzle is fixedly connected with an air inlet pipe.

[0013] Preferably, the sealing part comprises a filter screen arranged on the top of the air outlet pipe, and a fixed part is arranged on the top of the filter screen.

[0014] Preferably, the fixed part comprises a fixed cover sleeved on the top of the air outlet pipe in a threaded mode, an air outlet hole is formed in the top of the fixed cover, and a sealing ring is arranged at the connection position of the filter screen and the fixed cover.

[0015] Preferably, the buffer assembly comprises a baffle fixedly connected on the top of the cooling cylinder, and a plurality of through holes are formed in the top of the baffle.

[0016] The technical effects and advantages of the utility model are as follows:

[0017] The utility model discloses a cooling cylinder, first pneumatic butterfly valve, second pneumatic butterfly valve, water cooling part, air cooling part, air outlet assembly and buffer assembly are designed, the water cooling part is used for conveying cooling water to the inside of cooling cylinder through pipeline, the air cooling part is used for blowing dry cooling air into the inside of cooling cylinder, and the cooling cylinder is arranged at the discharge port of the spray drying equipment, when the material enters the inside of cooling cylinder, the material is cooled through the water cooling part and the air cooling part, and the situation that the material temperature is higher than indoor temperature is avoided. Effectively control the surface moisture of powder particles, avoid the problems such as water enrichment, particle agglomeration and product quality control requirement not up to standard. DRAWINGS

[0018] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0019] Figure 2 It is the front structure schematic diagram of the utility model.

[0020] Figure 3 It is the front sectional structure schematic diagram of the utility model.

[0021] Figure 4 It is the front sectional structure schematic diagram of the utility model Figure 3 A part amplification structure schematic diagram of the utility model.

[0022] In the figure: 1, cooling cylinder; 2, cooling assembly; 201, cooling water pipe; 202, nozzle; 203, air inlet pipe; 3, air outlet assembly; 301, air outlet; 302, air outlet pipe; 303, filter screen; 304, air outlet hole; 305, sealing ring; 306, fixed cover; 4, buffer assembly; 401, blocking plate; 402, through hole; 5, first pneumatic butterfly valve; 6, second pneumatic butterfly valve. DETAILED DESCRIPTION

[0023] The technical solutions 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. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] The utility model provides a kind of cooling device for spray drying, as shown in Figures 1-4 The utility model provides a kind of cooling device for spray drying, as shown in

[0025] Embodiment one:

[0026] A kind of cooling device for spray drying, comprising:

[0027] Cooling cylinder 1, the top of cooling cylinder 1 is provided with first pneumatic butterfly valve 5, and the bottom of cooling cylinder 1 is provided with second pneumatic butterfly valve 6;

[0028] Cooling assembly 2, cooling assembly 2 is arranged in the middle of cooling cylinder 1, and cooling assembly 2 includes water cooling part and air cooling part, and cooling assembly 2 is used for the cooling of particulate matter;

[0029] Air outlet assembly 3, air outlet assembly 3 is arranged at the top of cooling cylinder 1, and air outlet assembly 3 is used for discharging gas in cooling cylinder 1;

[0030] Buffer assembly 4, buffer assembly 4 is connected in the inside of cooling cylinder 1, and buffer assembly 4 is used for buffering the falling of particulate matter.

[0031] It should be noted that the cooling device is coated with Teflon non-stick material inside to avoid powder particles sticking to the inside of the cooling device, so that the material can smoothly rely on its own weight and naturally fall when entering the inside of the cooling device. The first pneumatic butterfly valve 5 and the second pneumatic butterfly valve 6 are composed of a valve body, a valve plate, a valve stem and a pneumatic actuator. When in use, compressed air enters the actuator, drives the valve stem and valve plate to rotate, makes the valve plate parallel to the fluid direction, opens the valve, and when the pneumatic butterfly valve needs to be closed, the compressed air is discharged, the actuator is reset, the valve stem is reversely rotated, the valve plate is perpendicular to the fluid direction, the valve is closed, thereby limiting the movement of the material; when the material needs to be cooled, first open the first pneumatic butterfly valve 5, so that the material enters the inside of the cooling cylinder 1, and when the material enters the cooling cylinder 1, close the first pneumatic butterfly valve 5, and cool the material in the cooling cylinder 1 through the cooling assembly 2. When the cooling is completed, open the second pneumatic butterfly valve 6, and the material can be discharged from the cooling cylinder 1.

[0032] Specifically, the water cooling part includes a cooling water pipe 201 connected in the middle of the cooling cylinder 1.

[0033] It should be noted that the shape of the cooling water pipe 201 can be well-shaped or wave-shaped. In use, cooling water is input into the inside of the cooling cylinder 1, and the material in the cooling cylinder 1 is cooled by heat exchange through the cooling water.

[0034] Specifically, the air cooling part includes air inlet pipes 203 symmetrically connected to the two sides of the cooling cylinder 1, and one end of the air inlet pipe 203 is fixedly connected with a nozzle 202.

[0035] It should be noted that one end of the air inlet pipe 203 is provided with a gas input assembly, which inputs dry cooling air into the inside of the air inlet pipe 203, and the material in the cooling cylinder 1 is cooled by the dry cooling air.

[0036] Specifically, the buffer assembly 4 includes a blocking plate 401 fixedly connected to the top of the cooling cylinder 1, and a plurality of through holes 402 are formed in the top of the blocking plate 401.

[0037] It should be noted that the blocking plate 401 is conical, and the through holes 402 are used for the material to pass through the blocking plate 401.

[0038] Example two:

[0039] The air outlet assembly 3 is applied to the cooling device in example one;

[0040] Specifically, the air outlet assembly 3 comprises an air outlet 301 arranged at the top of the cooling cylinder 1, and the top of the cooling cylinder 1 is fixedly connected with an air outlet pipe 302, and the top of the air outlet pipe 302 is provided with a sealing element, which comprises a filter screen 303 arranged at the top of the air outlet pipe 302, and the top of the filter screen 303 is provided with a fixing portion, which comprises a fixing cover 306 threadedly sleeved at the top of the air outlet pipe 302, and the top of the fixing cover 306 is provided with an air outlet hole 304, and the connecting portion of the filter screen 303 and the fixing cover 306 is provided with a sealing ring 305.

[0041] It should be noted that the air outlet pipe 302 is fixedly connected with the cooling cylinder 1 and penetrates the air outlet 301 arranged on the cooling cylinder 1, so that the gas in the cooling cylinder 1 can be discharged from the cooling cylinder 1 through the air outlet 301 and the air outlet pipe 302, the filter screen 303 is arranged with filter holes in the middle, and the diameter of the filter holes is two hundred to three hundred meshes, which can block the material from moving out of the cooling cylinder 1 while allowing the gas to pass through; the sealing ring 305 is made of rubber and is used to seal the connecting portion of the filter screen 303 and the fixing cover 306 by extrusion during use, so as to avoid the overflow of gas and material from the connecting portion of the filter screen 303 and the fixing cover 306; when it is necessary to fix the position of the filter screen 303, the filter screen 303 is placed on the top of the air outlet pipe 302, and then the fixing cover 306 is threadedly sleeved on the top of the air outlet pipe 302, and the filter screen 303 is extruded and fixed by the fixing cover 306.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacement for some technical features, and any modification, equivalent replacement or improvement made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A cooling device for spray drying, characterized in that Include: The cooling cylinder (1), the top of the cooling cylinder (1) is provided with a first pneumatic butterfly valve (5), the bottom of the cooling cylinder (1) is provided with a second pneumatic butterfly valve (6); Cooling assembly (2), the cooling assembly (2) is arranged in the middle of the cooling cylinder (1), the cooling assembly (2) includes water cooling and air cooling, the cooling assembly (2) is used for cooling of particulate matter; The air outlet assembly (3) is arranged at the top of the cooling cylinder (1), and the air outlet assembly (3) is used for discharging gas in the cooling cylinder (1); The buffer assembly (4) is connected in the cooling cylinder (1), and the buffer assembly (4) is used for buffering the falling of particulate matter.

2. A cooling device for spray drying according to claim 1, characterized in that The water cooling part includes a cooling water pipe (201) connected in the middle of the cooling cylinder (1).

3. A cooling device for spray drying according to claim 1, characterized in that The air cooling part includes an air inlet pipe (203) symmetrically connected on both sides of the cooling cylinder (1), one end of the air inlet pipe (203) is fixedly connected with a nozzle (202).

4. A cooling device for spray drying according to claim 1, characterized in that The air outlet assembly (3) includes an air outlet (301) opened at the top of the cooling cylinder (1), the top end of the cooling cylinder (1) is fixedly connected with an air outlet pipe (302), and the top of the air outlet pipe (302) is provided with a sealing element.

5. A cooling device for spray drying according to claim 4, characterized in that The sealing element includes a filter screen (303) arranged at the top of the air outlet pipe (302), and the top of the filter screen (303) is provided with a fixed part.

6. A cooling device for spray drying according to claim 5, characterized in that The fixed part includes a fixed cover (306) sleeved on the top of the air outlet pipe (302), the top of the fixed cover (306) is provided with an air outlet hole (304), and the connection between the filter screen (303) and the fixed cover (306) is provided with a sealing ring (305).

7. A cooling device for spray drying according to claim 1, characterized in that The buffer assembly (4) includes a blocking plate (401) fixedly connected to the top of the cooling cylinder (1), and a plurality of through holes (402) are formed in the top of the blocking plate (401).

Images