Variable-air-temperature mixed-flow type grain seed drying machine with independent air ducts

Abstract

The invention discloses an independent air duct variable air temperature mixed flow type grain seed drying machine which comprises a heat source, a drying machine body is arranged behind the heat source, and a settling chamber is connected behind the drying machine body; the bottom of the dryer main body comprises a base, a lower cone is downwards connected along the base, a discharging combination is upwards connected along the center of the base, a drying section and a tempering section are alternately arranged above the discharging combination and connected with a grain storage section at the top of the dryer tower body, and a bin top is arranged at the top of the grain storage section; the air inlet pipe is connected with an independent air duct formed by stacking multiple layers of air ducts, and the inner side of the independent air duct is connected with the air inlet duct; an air outlet duct is arranged on the other side of the dryer main body, and the bottom of the air outlet duct is connected with a settling chamber through an air outlet pipe; the independent air duct, the air inlet duct and the air outlet duct are all composed of multiple layers of air pipes and are all stacked in the height direction of the drying machine tower body, the multiple layers of air ducts control the air inlet amount of each layer of air duct through the air adjusting valves, and independent air temperature control over each layer of the drying machine tower body is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, in particular to a mixed flow grain seed dryer with an independent air duct and variable air temperature. Background Art

[0002] Due to the rapid development of the seed industry and the continuous reduction of labor, the mechanization level of seed processing has been continuously improved. It is well known that the moisture content of grain seeds such as rice, corn, and wheat is high after harvest. If they are not dried in time, they are prone to germination and mold, which affects the quality of the seeds. The current traditional dryer adopts a multi-stage combined tower structure, and usually multiple drying stages share one air duct for air supply. When drying rice, the temperature cannot be accurately controlled in each stage, which can easily cause the rice to burst and affect the germination rate of the seeds. In order to reduce labor intensity, reduce production costs, and adapt to the drying operations of rice, corn, wheat, etc., the present invention proposes a mixed flow grain seed dryer with independent air ducts and variable air temperature. Summary of the invention

[0003] The purpose of the present invention is to provide a mixed flow grain seed dryer with independent air duct and variable air temperature, so as to solve the shortcomings of traditional dryers in drying grain seeds, such as inconvenient operation, low efficiency, inability to accurately control temperature in sections, and high cracking rate.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mixed flow grain seed dryer with independent air duct and variable air temperature, comprising a heat source, the rear of the heat source is connected to an air inlet pipe arranged at the bottom of the side of the dryer body through an air duct, and the rear of the dryer body is also connected to a sedimentation chamber through the air duct; the central bottom of the dryer body comprises a base, a lower cone of a cone shell structure is connected downward along the center of the base, and a discharge assembly is connected upward along the center of the base, a cooling section of the dryer tower body is arranged above the discharge assembly, and a drying section of the dryer tower body is arranged above the cooling section A slow revival section is provided above the drying section, and the drying section and the slow revival section are alternately stacked upward in sequence and connected to the grain storage section on the top of the dryer tower body, and a silo roof is provided on the top of the grain storage section; an array of air regulating valves is provided inside the air inlet pipe, and the air regulating valves are connected to an independent air duct stacked by multiple layers of air ducts along the height direction of the dryer tower body through an upward air duct, and the inner side of the independent air duct is connected to the air inlet duct; an air outlet duct stacked along the height direction of the dryer tower body is provided on the other side of the dryer body, and the bottom of the air outlet duct is connected to a sedimentation chamber through an air outlet pipe, and a fan is provided at the bottom of the air outlet duct.

[0005] Preferably, the base is a four-group leg support structure, and a control box is provided on the legs.

[0006] Preferably, the air inlets are stacked in the height direction of the dryer tower body, and shutters are provided on the first and second air inlets at the bottom of the tower body.

[0007] Preferably, an auger is provided in the silo roof.

[0008] Preferably, a dehumidification pipe is provided in the air outlet duct, and an axial flow fan is installed on the dehumidification pipe.

[0009] Preferably, pentagonal boxes are installed inside the cooling section, the drying section and the slow drying section.

[0010] The working process of the present invention is: The mixed flow grain seed dryer with independent air duct and variable air temperature of the present invention can accurately control the temperature and air volume of rice, wheat, corn and other seeds during the drying process. First, the dryer tower body is composed of a plurality of cooling sections, slow cooling sections and drying sections. The dryer tower body is connected to the multi-layer air duct, and the multi-layer air duct is independently connected to each section of the tower body. By adjusting the air regulating valve on the air inlet pipe connected to the bottom of the multi-layer air duct, the air temperature and air volume of each layer of the air duct can be adjusted to achieve independent control of each drying layer of the tower body.

[0011] During the drying process, the seeds enter the silo from the feed port on the top of the silo, and are evenly dispersed into the silo by the action of the auger. As the seeds fall, they alternately pass through the drying section and the slow drying section from top to bottom, and continue to fall to the cooling section for cooling. After passing through the cooling section, they enter the discharge assembly and are finally discharged from the silo through the lower cone.

[0012] In the present invention, the hot air provided by the heat source enters the independent air duct through the air inlet pipe, the air inlet pipe is divided into multiple layers, and each layer of the air inlet pipe is equipped with an air regulating valve for independent temperature control. The independent air duct is composed of multiple air ducts and is stacked along the height direction of the tower. The hot air in each air duct is independently transported to the warehouse body through the air inlet. The hot air flows in the pentagonal box of each drying section to dry the seeds falling from top to bottom.

[0013] The moist air after drying the seeds can be discharged through a moisture removal pipe arranged in the air outlet duct, and an axial flow fan is installed on the moisture removal pipe to realize the rapid discharge of the moist air.

[0014] The fan is connected to the air outlet duct. When the fan is working, negative pressure is formed in the air outlet duct to suck out dust and other impurities in the tower body. The impurities are sucked into the sedimentation chamber through the fan and deposited in the sedimentation chamber, completing the impurity collection and ensuring environmental protection and cleanliness during the drying process.

[0015] The beneficial effects of the present invention are: (1) In the present invention, the independent air duct, the air inlet duct and the air outlet duct are all composed of multiple layers of air ducts and are stacked along the height direction of the dryer tower body. The air intake volume of each layer of the air duct is controlled by the air regulating valve in the air inlet duct, thereby realizing independent air temperature control of each layer of the dryer tower body.

[0016] (2) The tower body of the dryer of the present invention is composed of a multi-layer slow drying section, a drying section, and a cooling section, which are combined according to the drying characteristics of grains such as rice and wheat, and can improve the drying efficiency and reduce the cracking rate of grains during the drying process.

[0017] (3) A dehumidification pipe is provided on each drying section of the tower body of the present invention, and moisture in the drying section is discharged from the tower body through the dehumidification pipe, thereby improving the drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 Schematic diagram of the main structure of the medium dryer; Figure 3 yes Figure 2 Sectional view of the main structure of the dryer; Figure 4 It is an axial structural diagram of the present invention; Figure 5 yes Figure 1 The structural schematic diagram of the pentagonal box in the present invention; In the figure: 1-heat source, 2-dryer body, 3-sedimentation chamber, 201-air inlet pipe, 202-independent air duct, 203-air inlet duct, 204-cooling section, 205-drying section, 206-slow recovery section, 207-grain storage section, 208-silo top, 209-discharging combination, 210-lower cone, 211-fan, 212-base, 213-control box, 214-drain pipe, 215-auger, 216-louver, 217-air regulating valve, 218-air outlet, 219-pentagon box. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0020] like Figure 1-5The mixed flow grain seed dryer with independent air duct and variable air temperature shown in the figure comprises a heat source 1, the rear of the heat source 1 is connected to an air inlet pipe 201 arranged at the bottom of the side of the dryer body 2 through an air duct, and the rear of the dryer body 2 is also connected to a sedimentation chamber 3 through an air duct; the central bottom of the dryer body 2 comprises a base 212, the base 212 is a four-group leg support structure, and a control box 213 is arranged on the legs; a lower cone 210 of a cone shell structure is connected downward along the center of the base 212, and a discharge assembly 209 is connected upward along the center of the base 212, a cooling section 204 of the dryer tower body is arranged above the discharge assembly 209, a drying section 205 of the dryer tower body is arranged above the cooling section 204, a slow-release section 206 is arranged above the drying section 205, the drying section 205 and the slow-release section 206 are alternately stacked upward and connected to the grain storage section 207 at the top of the dryer tower body, and the cooling section 204, the drying section 205 and the slow-release section 206 are alternately stacked upward and connected to the grain storage section 207 at the top of the dryer tower body. A pentagonal box 219 is installed inside the drying section 205 and the slow drying section 206; a silo top 208 is provided on the top of the grain storage section 207, and a screw 215 is provided inside the silo top 208; an array of air regulating valves 217 are provided inside the air inlet pipe 201, and the air regulating valve 217 is connected to an independent air duct 202 arranged by stacking multiple air ducts along the height direction of the dryer tower body through an upward air duct, and the inner side of the independent air duct 202 is connected to the air inlet duct 203; the air inlet duct 203 is connected to the drying tower body through the upward air duct. The dryer tower body is stacked in the height direction, and shutters 216 are provided on the first-layer air inlet 203 and the second-layer air inlet 203 at the bottom of the tower body; the other side of the dryer body 2 is provided with an air outlet 218 stacked in the height direction of the dryer tower body, and a dehumidification pipe 214 is provided in the air outlet 218, and an axial flow fan is installed on the dehumidification pipe 214; the bottom of the air outlet 218 is connected to the sedimentation chamber 3 through the air outlet pipe, and a fan 211 is provided at the bottom of the air outlet 218.

[0021] The working process of the present invention is: The mixed flow grain seed dryer with independent air duct and variable air temperature of the present invention can accurately control the temperature and air volume of rice, wheat, corn and other seeds during the drying process. First, the dryer tower body is composed of a plurality of cooling sections 204, slow cooling sections 206, and drying sections 205. The dryer tower body is connected to the multi-layer air duct, and the multi-layer air duct is independently connected to each section of the tower body. By adjusting the air regulating valve 217 on the air inlet pipe 201 connected to the bottom of the multi-layer air duct, the air temperature and air volume of each layer of the air duct can be adjusted to achieve independent control of each drying layer of the tower body.

[0022] During the drying process, the seeds enter the silo from the feed port on the silo top 208 and are evenly dispersed into the silo by the action of the auger 215. As the seeds fall, they alternately pass through the drying section 205 and the slow drying section 206 from top to bottom, continue to fall to the cooling section 204 for cooling, and after passing through the cooling section 204, they enter the discharge assembly 209 and are finally discharged from the silo through the lower cone 210.

[0023] In the present invention, the hot air provided by the heat source enters the independent air duct 202 through the air inlet pipe 201. The air inlet pipe 201 is divided into multiple layers. Each layer of the air inlet pipe 201 is equipped with an air regulating valve 217 for independent temperature control. The independent air duct 202 is composed of multiple air ducts and is stacked along the height direction of the tower. The hot air in each air duct is independently transported to the warehouse body through the air inlet 203. The hot air flows in the pentagonal box 219 of each drying section 205 to dry the seeds falling from top to bottom.

[0024] The moist air after drying the seeds can be discharged through the dehumidification pipe 214 arranged in the air outlet duct 218, and the dehumidification pipe 214 is installed with an axial flow fan to realize the rapid discharge of the moist air.

[0025] The fan 211 is connected to the air outlet duct 218. When the fan 211 is working, a negative pressure is formed in the air outlet duct 218 to suck out impurities such as dust in the tower body. The impurities are sucked into the sedimentation chamber 3 through the fan 211 and deposited in the sedimentation chamber 3, completing the impurity collection and ensuring environmental protection and cleanliness during the drying process.

[0026] In the present invention, the independent air duct, air inlet duct and air outlet duct are all composed of multi-layer air ducts and are stacked along the height direction of the dryer tower body. The multi-layer air duct controls the air intake of each layer of the air duct through the air regulating valve in the air inlet duct, so as to realize the independent air temperature control of each layer of the dryer tower body. At the same time, the dryer tower body is composed of a multi-layer slow-release section, a drying section and a cooling section, which are combined according to the drying characteristics of grains such as rice and wheat, so as to improve the drying efficiency and reduce the cracking rate of grains during drying.

[0027] The above are only preferred examples of the present invention. It should be pointed out that for ordinary technicians in this field, under the technical enlightenment provided by the present invention, as common knowledge in the mechanical field, other equivalent variations and improvements can also be made, which should also be regarded as the protection scope of the present invention.

Claims

1. A mixed flow grain seed dryer with independent air duct and variable air temperature, characterized in that: The heat source (1) comprises a heat source (1), the rear of the heat source (1) being connected to an air inlet pipe (201) arranged at the bottom of the side of a dryer body (2) via an air duct, and the rear of the dryer body (2) is also connected to a settling chamber (3) via an air duct; The central bottom of the dryer body (2) comprises a base (212), a lower cone (210) of a cone shell structure is connected downwardly along the center of the base (212), and a discharge assembly (209) is connected upwardly along the center of the base (212), a cooling section (204) of the dryer tower body is arranged above the discharge assembly (209), a drying section (205) of the dryer tower body is arranged above the cooling section (204), a slow revival section (206) is arranged above the drying section (205), the drying section (205) and the slow revival section (206) are alternately stacked upwardly and connected to a grain storage section (207) at the top of the dryer tower body, and a silo top (208) is arranged on the top of the grain storage section (207); An array of air regulating valves (217) is provided inside the air inlet pipe (201); the air regulating valves (217) are connected to an independent air duct (202) stacked along the height direction of the dryer tower body through a plurality of air ducts through an upward air duct; the inner side of the independent air duct (202) is connected to the air inlet duct (203); an air outlet duct (218) stacked along the height direction of the dryer tower body is provided on the other side of the dryer body (2); the bottom of the air outlet duct (218) is connected to a settling chamber (3) through an air outlet pipe, and a fan (211) is provided at the bottom of the air outlet duct (218).

2. The mixed flow grain seed dryer with independent air duct and variable air temperature according to claim 1, characterized in that: The base (212) is a four-group leg support structure, and a control box (213) is provided on the legs.

3. A mixed flow grain seed dryer with independent air duct and variable air temperature according to claim 1 or 2, characterized in that: The air inlet ducts (203) are stacked in the height direction of the dryer tower body, and shutters (216) are provided on the first layer of air inlet ducts (203) and the second layer of air inlet ducts (203) at the bottom of the tower body.

4. The mixed flow grain seed dryer with independent air duct and variable air temperature according to claim 3, characterized in that: An auger (215) is provided in the silo roof (208).

5. The mixed flow grain seed dryer with independent air duct and variable air temperature according to claim 4, characterized in that: A dehumidification pipe (214) is provided in the air outlet duct (218), and an axial flow fan is installed on the dehumidification pipe (214).

6. The mixed flow grain seed dryer with independent air duct and variable air temperature according to claim 5, characterized in that: A pentagonal box (219) is installed inside the cooling section (204), the drying section (205) and the slow cooling section (206).

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