CN210512342U

CN210512342U - Low-temperature drying equipment for wheat grass

Info

Publication number: CN210512342U
Application number: CN201921402791.5U
Authority: CN
Inventors: 梁比琦
Original assignee: Guangzhou Yixi Biotechnology Co ltd
Current assignee: Guangzhou Yixi Biotechnology Co ltd
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-05-12
Anticipated expiration: 2029-08-27

Abstract

The utility model discloses a low-temperature wheat grass drying device, wherein a discharge pipeline is arranged at the bottom of a drying chamber; the feeding hopper is positioned at the top of the drying chamber; the water vapor collecting tank is communicated to the top of the drying chamber through a condensing pipe; the multilayer crushing device is positioned in the drying chamber and is vertically arranged on the longitudinal central axis of the drying chamber; the vacuum pressure pump is communicated with the interior of the drying chamber through a vacuum pumping pipeline; the cooling compression pump is communicated with the interior of the drying chamber through a cold air pipeline; the multilayer crushing device, the vacuum pressure pump and the cooling compression pump are all in control connection with the control device; because the multilayer crushing device is adopted in the drying chamber, the cooling is carried out by matching with the cooling compression pump, the pressure regulation is carried out by combining the vacuum pressure pump, the wheat straw containing the rootstocks is in the same cavity, the wheat straw can be crushed for a plurality of times in the low-temperature drying process, the wheat straw can be fully dried at low temperature in the crushing process, the processing process is simple, the cost is low, and the nutritional ingredients of the wheat straw are completely reserved.

Description

Low-temperature drying equipment for wheat grass

Technical Field

The utility model relates to a later stage processing equipment field of wheatgrass especially relates to a low temperature drying equipment of wheatgrass.

Background

Wheatgrass (Wheatgrass) is a plant, the genus roentgen (Agropyron), which is a unique wheat, with the mature fruit being a red wheat berry. Especially young leaves of herba Centipedae (Agropyron cristatum, the same kind of wheat) can be squeezed to obtain juice or sun-dried and ground. The unprocessed plants are difficult to digest and absorb by human body because of containing a large amount of cellulose.

Wheat grass contains rich chlorophyll, vitamin A, vitamin C, vitamin E, vitamin B group, mineral calcium, magnesium, phosphorus, iron and selenium, super antioxidant SOD, fiber and beneficial enzyme, belongs to a substance with extremely high nutritive value, and is more and more widely applied to the aspect of medical curative effect.

In the prior art, the processing technology of wheat grass usually relates to the drying treatment of the wheat grass; however, most of the drying treatment in the existing drying technology adopts high temperature, and the nutrient components of the wheat grass cannot be completely reserved; although a few of the prior art also adopts low-temperature drying, the low-temperature drying and the crushing or grinding are basically completed in different cavities separately, so that the equipment cost is higher, and the processing process is more complicated; in addition, in the processing of the sub-cavity body, the phenomenon that materials are stacked together often occurs in the low-temperature drying link, so that the materials cannot be sufficiently dried, and the later processing effect is influenced.

Therefore, there is still a need for improvement and development of the prior art.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a wheat grass's low temperature drying equipment, not only the course of working is simple, low cost, can completely remain wheat grass's nutrient composition moreover.

The technical scheme of the utility model as follows: an apparatus for the cryogenic drying of wheat grass comprising: the device comprises a drying chamber, a feeding hopper, a water vapor collecting tank, a multi-layer crushing device, a vacuum pressure pump, a cooling compression pump and a control device; wherein, the bottom of the drying chamber is provided with a discharge pipeline, and a discharge valve is arranged on the discharge pipeline; the feeding funnel is positioned on a top cover of the drying chamber, a feeding pipeline is communicated between the top cover and the bottom of the feeding funnel, and a feeding valve is arranged on the feeding pipeline; the water vapor collecting tank is communicated to the top cover of the drying chamber through a condensing pipe, and a water vapor collecting valve is arranged on the condensing pipe; the multilayer crushing device is positioned in the drying chamber and is vertically arranged on the longitudinal central axis of the drying chamber; the vacuum pressure pump is communicated with the inside of the drying chamber through a vacuum pumping pipeline and is used for adjusting the vacuum degree and the pressure in the drying chamber; the cooling compression pump is communicated with the inside of the drying chamber through a cold air pipeline and is used for adjusting the temperature inside the drying chamber; the multilayer crushing device, the vacuum pressure pump and the cooling compression pump are all connected with the control device in a control mode.

The low-temperature wheat grass drying equipment comprises: the bottom wall of the drying chamber is also provided with two air inlets capable of blowing air transversely, each air inlet is communicated with an air blower through a respective air inlet pipeline, each air inlet pipeline is provided with a respective air inlet quantity adjusting valve, the air blowers are in control connection with a control device and used for controlling high-pressure air flow blown out by the air blowers according to the accumulation condition of wheat grass materials at the bottom of the drying chamber, blowing the wheat grass materials accumulated at the corners of the bottom of the drying chamber to a high position and repeatedly crushing the wheat grass materials through a multi-layer crushing device for multiple times.

The low-temperature wheat grass drying equipment comprises: the inner surface of the side wall of the drying chamber is a rough surface, and the surface roughness is Ra 60-200 μm.

The low-temperature wheat grass drying equipment comprises: the inner space of the drying chamber is in the shape of an inverted cone frustum, and the inner side wall of one side of the drying chamber is in an upward oblique line on the longitudinal section of the drying chamber.

The low-temperature wheat grass drying equipment comprises: the bottom wall of the drying chamber is in the shape of an inverted cone, and the discharge pipeline is communicated with the tip end of the inverted cone-shaped bottom wall.

The low-temperature wheat grass drying equipment comprises: and an emptying valve is arranged on the top cover of the drying chamber and is used for adjusting the pressure in the drying chamber together with a vacuum pressure pump.

The low-temperature wheat grass drying equipment comprises: the top cover of the drying chamber is also provided with a safety valve and a thermometer, the safety valve is used for preventing the internal pressure of the drying chamber from exceeding the safety pressure, and the thermometer is used for displaying the temperature value inside the drying chamber in real time.

The low-temperature wheat grass drying equipment comprises: the multilayer crushing device comprises 6-8 pairs of pulping knives arranged from top to bottom at intervals, each layer of the multilayer crushing device is composed of two symmetrically arranged pulping knives, and each pulping knife is provided with a cutting edge.

The low-temperature wheat grass drying equipment comprises: the vacuum pumping pipeline is further provided with a vacuum pumping valve and a pressure gauge, the vacuum pumping valve is used for adjusting the vacuum degree inside the drying chamber, and the pressure gauge is used for displaying the pressure value inside the drying chamber in real time.

The low-temperature wheat grass drying equipment comprises: the top of the feeding funnel is provided with a funnel cover which can be opened and closed.

The utility model provides a pair of wheat grass's low temperature drying equipment owing to adopted multilayer reducing mechanism in the drying chamber to cooperation cooling compressor pump cools down, and combine the vacuum force pump to carry out the pressure regulating, and the wheat grass that contains the rhizome is at same cavity, and the in-process that can low temperature drying is smashed many times, can obtain abundant low temperature drying at kibbling in-process again, and not only the course of working is simple, low cost, has kept wheat grass's nutrient composition completely moreover.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the wheat grass low-temperature drying device of the present invention;

reference numbers in the figures: the drying chamber 100, the top cover 110, the thermometer 111, the blow-down valve 112, the safety valve 113, the inner side wall 120, the bottom wall 130, the discharge pipe 131, the discharge valve 132, the feed hopper 200, the hopper cover 210, the feed pipe 220, the feed valve 230, the water vapor collection tank 300, the condenser pipe 310, the water vapor collection valve 320, the multi-layer grinding device 400, the beater bar 410, the vacuum pressure pump 500, the vacuuming pipe 510, the vacuuming valve 511, the pressure gauge 512, the cooling compression pump 600, the cold air pipe 610, the control device 700, the blower 800, the air inlet pipe 810, the air inlet 820, and the air inlet adjusting valve 830.

Detailed Description

The following detailed description and examples of the present invention are provided in connection with the accompanying drawings, which are set forth for the purpose of illustration only and are not intended to limit the invention.

As shown in fig. 1, fig. 1 is a schematic structural diagram of an embodiment of the wheat grass low-temperature drying apparatus of the present invention, which includes a drying chamber 100, a feeding funnel 200, a water vapor collecting tank 300, a multi-layer pulverizing device 400, a vacuum pressure pump 500, a cooling compression pump 600 and a control device 700; wherein, a discharge pipe 131 is arranged at the bottom of the drying chamber 100, and a discharge valve 132 is arranged on the discharge pipe 131; the feeding funnel 200 is positioned on the top cover 110 of the drying chamber 100, a feeding pipeline 220 is communicated between the top cover 110 and the bottom of the feeding funnel 200, and a feeding valve 230 is arranged on the feeding pipeline 220; the water vapor collection tank 300 is communicated to the top cover 110 of the drying chamber 100 through a condensation pipe 310, and a water vapor collection valve 320 is arranged on the condensation pipe 310, and is used for collecting water vapor sublimated by wheat grass in the drying chamber 100 in the low-temperature drying process when the water vapor collection valve 320 is opened; the multi-layer pulverizing apparatus 400 is located inside the drying chamber 100 and is vertically disposed on the longitudinal central axis of the drying chamber 100; the vacuum pressure pump 500 is connected to the inside of the drying chamber 100 via a vacuum pipe 510, for example, by connecting the upper part of the sidewall 120 of the drying chamber 100 to the inside thereof, so as to adjust the vacuum degree and pressure inside the drying chamber 100, preferably, in order to prevent the splashed wheat grass debris from entering the vacuum pipe 510, a replaceable or detachable filter screen may be disposed at the mouth of the vacuum pipe 510; the cooling compression pump 600 is communicated with the inside of the drying chamber 100 through a cold air duct 610, for example, the upper part of the sidewall 120 of the drying chamber 100 is connected to the inside thereof for adjusting the temperature inside the drying chamber 100, preferably, in order to prevent splashed wheat grass debris from entering the cold air duct 610, a replaceable or detachable filter screen may be arranged at the mouth of the cold air duct 610; the multi-layer crushing device 400, the vacuum pressure pump 500 and the cooling compression pump 600 are all in control connection with the control device 700.

In the preferred embodiment of the utility model, preferably, two air inlets 820 capable of blowing air transversely are further disposed on the bottom wall 130 of the drying chamber 100, each air inlet 820 is respectively communicated with the air blower 800 via a respective air inlet pipeline 810, a respective air inlet adjusting valve 830 is disposed on each air inlet pipeline 810, the air blower 800 is in control connection with the control device 700, and is used for controlling the high-pressure air flow blown out by the air blower 800 according to the accumulation condition of wheat grass materials at the bottom of the drying chamber 100, blowing the wheat grass materials accumulated at the corners of the bottom of the drying chamber 100 to the high place, and repeatedly crushing the wheat grass materials by the multi-layer crushing device 400 for multiple times, so as to further improve the crushing effect of wheat grass; preferably, in order to prevent wheat and grass debris from entering the air inlets 820, filter screens which can be replaced or disassembled for washing can be arranged at the mouths of the two air inlets 820.

Preferably, the inner surface of the sidewall 120 of the drying chamber 100 is rough, and the surface roughness thereof is between Ra 60-200 μm, thereby facilitating the rebound of the harder roots of wheat grass during the crushing process.

Preferably, the inner space of the drying chamber 100 is in the shape of an inverted cone frustum, that is, when viewed from the longitudinal section of the drying chamber 100, the inner side walls 120 on one side are all in an upward oblique line; thereby helping to bounce the harder roots of the wheat grass upwards during the crushing process.

Preferably, the bottom wall 130 of the drying chamber 100 is in the shape of an inverted cone, and the discharge pipe 131 is communicated with the tip end of the inverted cone-shaped bottom wall 130, so as to facilitate the wheat grass powder after being dried and pulverized at low temperature to flow out from the discharge pipe 131.

Preferably, the top cover 110 of the drying chamber 100 is provided with a vent valve 112 for cooperating with the vacuum pressure pump 500 to adjust the pressure inside the drying chamber 100.

Preferably, a safety valve 113 and a thermometer 111 are further disposed on the top cover 110 of the drying chamber 100, the safety valve 113 is used for preventing the internal pressure of the drying chamber 100 from exceeding a safety pressure, and the thermometer 111 is used for displaying a temperature value inside the drying chamber 100 in real time.

Preferably, the multi-layer crushing device 400 comprises 6-8 pairs of pulping knives 410 arranged from top to bottom at intervals, each layer consists of two symmetrically arranged pulping knives 410, and each pulping knife 410 is provided with a sharp cutting edge so as to ensure that wheat grass and rhizomes thereof are fully crushed; since wheat grass is not sufficiently dried at the beginning of crushing, crushing must be performed by rapid rotation using a sharp blade, and a blade without a sharp blade cannot be used.

Preferably, the evacuation pipe 510 is further provided with an evacuation valve 511 and a pressure gauge 512, the evacuation valve 511 is used for adjusting the vacuum degree inside the drying chamber 100, and the pressure gauge 512 is used for displaying the pressure value inside the drying chamber 100 in real time.

In addition, preferably, the top of the feeding funnel 200 is provided with a hopper cover 210 which can be opened and closed, the hopper cover 210 is opened, and wheat grass to be processed is added into the feeding funnel 200; after the start device is operated, the funnel cover 210 must be fastened to open the feeding valve 230, so as to prevent wheat straw in the feeding funnel 200 from splashing outwards.

The utility model discloses wheat grass low temperature drying equipment's theory of operation and process are as follows:

step S110, opening a water vapor collecting valve 320 on the condensation pipe 310; opening the hopper cover 210 of the feed hopper 200, adding a certain amount of wheat grass (which may have roots) to be processed into the feed hopper 200, closing the hopper cover 210, and closing the emptying valve 112 on the top cover 110 of the drying chamber 100;

step S120, turning on a main switch of the equipment, under the control of the control device 700, starting the operation of the cooling compression pump 600, allowing cold air to enter the drying chamber 100 through the cold air duct 610, and monitoring through the thermometer 111 on the top cover 110 of the drying chamber 100 so as to gradually reduce the temperature inside the drying chamber 100 to a specified temperature;

step S130, under the control of the control device 700, the multi-layer pulverizing apparatus 400 starts rotating at a high speed; opening a feeding valve 230, enabling wheat straws to be processed in a feeding funnel 200 to fall from the top of the drying chamber 100 through a feeding pipeline 220, performing primary crushing through a plurality of pairs of beating knives 410 which run at a high speed, and closing the feeding valve 230 after all the wheat straws in the feeding funnel 200 enter the drying chamber 100;

step S140, checking the safety valve 113 on the top cover 110 of the drying chamber 100, opening the vacuum valve 511 on the vacuum pipeline 510, under the control of the control device 700, starting the vacuum pressure pump 500 to work, and adjusting and monitoring through the vacuum valve 511 and the pressure gauge 512 on the vacuum pipeline 510 to control the vacuum degree in the drying chamber 100 and assist the sublimation of the moisture in the wheat grass; while in the primary crushing process, some wheat grass roots are thrown onto the inclined inner side wall 120 of the drying chamber 100 and are rebounded upwards by the rough surface to be crushed again on the beating knife 410;

step S150, under the control of the control device 700, the blower 800 starts to work, the air inlet quantity regulating valve 830 is opened, high-pressure air flow enters the drying chamber 100 through the two air inlets 820 capable of blowing air transversely on the bottom wall 130 along the air inlet pipeline 810, wheat grass materials accumulated at the bottom of the drying chamber 100 are blown to a high position circularly, and are crushed for multiple times through multiple pairs of beating knives 410 which run at a high speed; in the whole crushing process, the blower 800 is always in an open state, and the blower 800 is not finally closed until the air inlet quantity regulating valve 830 is closed, so that crushed wheat grass powder is prevented from entering the blower 800 from the air inlet 820; the sublimated water is condensed into liquid water through the condensing pipe 310 and flows into the water vapor collection tank 300;

step S160, after a specified period of processing time, sequentially closing the intake air amount adjusting valve 830 and the evacuation valve 511, and sequentially closing the blower 800, the vacuum pressure pump 500, and the cooling compression pump 600 under the control of the control device 700; opening the emptying valve 112 on the top cover 110 of the drying chamber 100, connecting a collecting bag at the tail end of the discharge pipeline 131, opening the discharge valve 132 to obtain wheat straw powder after low-temperature drying and crushing, and stopping the multi-layer crushing device 400 after emptying the wheat straw material in the drying chamber 100; at the same time, the liquid water in the water vapor collection canister 300 is poured off and the water vapor collection valve 320 is closed.

It should be understood that the above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the technical solutions of the present invention, and those skilled in the art can add, subtract, replace, change or modify the above-mentioned embodiments within the spirit and principle of the present invention, and all such additions, substitutions, changes or modifications should fall within the scope of the appended claims.

Claims

1. A wheat grass low-temperature drying device is characterized in that: comprises a drying chamber, a feeding hopper, a water vapor collecting tank, a multi-layer crushing device, a vacuum pressure pump, a cooling compression pump and a control device; wherein, the bottom of the drying chamber is provided with a discharge pipeline, and a discharge valve is arranged on the discharge pipeline; the feeding funnel is positioned on a top cover of the drying chamber, a feeding pipeline is communicated between the top cover and the bottom of the feeding funnel, and a feeding valve is arranged on the feeding pipeline; the water vapor collecting tank is communicated to the top cover of the drying chamber through a condensing pipe, and a water vapor collecting valve is arranged on the condensing pipe; the multilayer crushing device is positioned in the drying chamber and is vertically arranged on the longitudinal central axis of the drying chamber; the vacuum pressure pump is communicated with the inside of the drying chamber through a vacuum pumping pipeline and is used for adjusting the vacuum degree and the pressure in the drying chamber; the cooling compression pump is communicated with the inside of the drying chamber through a cold air pipeline and is used for adjusting the temperature inside the drying chamber; the multilayer crushing device, the vacuum pressure pump and the cooling compression pump are all connected with the control device in a control mode.

2. An apparatus for the low-temperature drying of wheat grass according to claim 1, characterized in that: the bottom wall of the drying chamber is also provided with two air inlets capable of blowing air transversely, each air inlet is communicated with an air blower through a respective air inlet pipeline, each air inlet pipeline is provided with a respective air inlet quantity adjusting valve, the air blowers are in control connection with a control device and used for controlling high-pressure air flow blown out by the air blowers according to the accumulation condition of wheat grass materials at the bottom of the drying chamber, blowing the wheat grass materials accumulated at the corners of the bottom of the drying chamber to a high position and repeatedly crushing the wheat grass materials through a multi-layer crushing device for multiple times.

3. An apparatus for the low-temperature drying of wheat grass according to claim 1, characterized in that: the inner surface of the side wall of the drying chamber is a rough surface, and the surface roughness is Ra 60-200 μm.

4. An apparatus for the low-temperature drying of wheat grass according to claim 1, characterized in that: the inner space of the drying chamber is in the shape of an inverted cone frustum, and the inner side wall of one side of the drying chamber is in an upward oblique line on the longitudinal section of the drying chamber.

5. An apparatus for the low-temperature drying of wheat grass according to claim 1, characterized in that: the bottom wall of the drying chamber is in the shape of an inverted cone, and the discharge pipeline is communicated with the tip end of the inverted cone-shaped bottom wall.

6. An apparatus for the low-temperature drying of wheat grass according to claim 1, characterized in that: and an emptying valve is arranged on the top cover of the drying chamber and is used for adjusting the pressure in the drying chamber together with a vacuum pressure pump.

7. An apparatus for the low-temperature drying of wheat grass according to claim 1, characterized in that: the top cover of the drying chamber is also provided with a safety valve and a thermometer, the safety valve is used for preventing the internal pressure of the drying chamber from exceeding the safety pressure, and the thermometer is used for displaying the temperature value inside the drying chamber in real time.

8. An apparatus for the low-temperature drying of wheat grass according to claim 1, characterized in that: the multilayer crushing device comprises 6-8 pairs of pulping knives arranged from top to bottom at intervals, each layer of the multilayer crushing device is composed of two symmetrically arranged pulping knives, and each pulping knife is provided with a cutting edge.

9. An apparatus for the low-temperature drying of wheat grass according to claim 1, characterized in that: the vacuum pumping pipeline is further provided with a vacuum pumping valve and a pressure gauge, the vacuum pumping valve is used for adjusting the vacuum degree inside the drying chamber, and the pressure gauge is used for displaying the pressure value inside the drying chamber in real time.

10. An apparatus for the low-temperature drying of wheat grass according to claim 1, characterized in that: the top of the feeding funnel is provided with a funnel cover which can be opened and closed.