Equipment capable of adjusting moisture content of glutinous rice flour

Abstract

The utility model relates to equipment capable of adjusting the moisture content of glutinous rice flour to solve the technical problem that the moisture content of the glutinous rice flour processed in the prior art is unstable. Comprising a pulverizer, a conveying pipe, a cyclone separator and an air seal machine which are sequentially connected, the pulverizer is provided with a rice inlet and an air inlet, the heat exchanger comprises an airflow inlet and an airflow outlet, the airflow inlet is provided with a temperature sensor, the temperature sensor is electrically connected to one input end of the controller, and the air seal machine is connected with the conveying pipe. The heat exchanger is electrically connected to one output end of the controller. The temperature of fed air is adjusted through the heat exchanger which is controlled to switch working modes, the humidity of the fed air is adjusted through the spraying device which is controlled to be started, and when the air flow with stable temperature and humidity carries the glutinous rice flour to flow backwards, the influence degree on the water content in the glutinous rice flour is uniform; therefore, the moisture fluctuation range of the finally obtained glutinous rice flour can be ensured to be + / -1%, and the stability of the moisture content is improved.

Description

Technical Field

[0001] The utility model relates to the field of food processing, and particularly relates to a device for adjusting the moisture content of glutinous rice flour. Background Art

[0002] The existing wet pulverization process of glutinous rice flour on the market is as follows: rice feeding → rice washing → rice soaking → water draining → quantitative feeding → rice grinding → finished glutinous rice flour conveying / storing. In the rice grinding process section, a variable-frequency motor drives a pulverizing component inside the pulverizer to generate a strong suction force, sucking the rice material quantitatively conveyed by the auger to the feed inlet of the pulverizer into the pulverizer. The soaked glutinous rice is pulverized into glutinous rice flour by the internal pulverizing component, and the powder is carried out of the pulverizing component of the pulverizer by the air flow and conveyed to a cyclone separator to separate the air flow and the powder material. The finished powder forms continuous discharge through the air lock of the air lock, so as to realize the efficient and rapid pulverization of the material.

[0003] The problems existing in the prior art are as follows: During the processing and production, it is found that the moisture content of the pulverized glutinous rice flour is unstable, and the fluctuation range of the moisture content is ±7%. This will affect the stability of the water addition amount in the subsequent dough kneading, and ultimately lead to the instability of the overall dough kneading yield. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a device for adjusting the moisture content of glutinous rice flour to solve the technical problem of unstable moisture content of the processed glutinous rice flour in the prior art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A device for adjusting the moisture content of glutinous rice flour includes a pulverizer, a conveying pipe, a cyclone separator and an air lock connected in sequence. The pulverizer is provided with a rice material inlet and an air inlet for air flow to enter. The device further includes a heat exchanger and a controller. The heat exchanger includes an air flow inlet and an air flow outlet. The heat exchanger is used to adjust the temperature of the air flow entering from the air flow inlet and send the temperature-adjusted air flow into the air inlet through the air flow outlet;

[0007] A temperature sensor is arranged at the air flow inlet. The temperature sensor is electrically connected to an input end of the controller to transmit the detected air flow temperature value to it. The heat exchanger is electrically connected to an output end of the controller to cool or heat the air flow in the cavity in a controlled manner.

[0008] Further, a humidity sensor is also arranged at the air flow inlet. A spraying device is also arranged between the air flow outlet and the air inlet. The humidity sensor is electrically connected to another input end of the controller to transmit the detected air flow humidity value to it. The spraying device is electrically connected to an output end of the controller to spray water to the air flow in a controlled manner.

[0009] Furthermore, an air inlet silencer is provided between the heat exchanger and the crusher, and two ends of the air inlet silencer are respectively connected to the air flow outlet and the air inlet.

[0010] Furthermore, the spraying device includes a spraying port for spraying the mist, and the spraying port is located inside the air inlet silencer.

[0011] Furthermore, the spraying device includes a spraying port for spraying the mist, and the spraying port is located at the air inlet.

[0012] Furthermore, the heat exchanger is an air heat exchanger.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] The present utility model adjusts the temperature of the incoming air through the heat exchanger, ensuring that the temperature of the air carrying the rice flour transported backward remains within a relatively stable temperature range. During the process of the air flow with a stable temperature carrying the rice flour flowing backward, the influence degree on the moisture content in the rice flour is uniform, which can ensure that the moisture content of the finally obtained rice flour tends to be stable. After being measured by the national standard moisture measurement method, the moisture content fluctuation range of the rice flour crushed by the production line of the present utility model is ±1%, compared with ±7% in the prior art. It can be seen that the present utility model significantly improves the stability of the moisture content of the rice flour and will not be significantly affected by the temperature changes at different times of a day or in different seasons of a year due to the change of weather conditions. It is convenient to ensure the stability of the water addition amount in the subsequent dough mixing and the stability of the final overall dough mixing yield.

[0015] By setting the humidity sensor and the spraying device, the present utility model can humidify the drying air flow, further improving the stability of the moisture content of the finally produced rice flour.

[0016] Parts not involved in this device are the same as those in the prior art or can be implemented by using the prior art. The structure of the present utility model is scientific and reasonable, safe and convenient to use, and provides great help to people. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings are used to provide further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, but do not constitute a limitation to the present utility model. In the drawings:

[0018] Figure 1 is a schematic structural diagram of Embodiment 1 of an apparatus for adjusting the moisture content of rice flour according to the present utility model;

[0019] Figure 2Block diagram of the electrical structure of Embodiment 1 of an apparatus for adjusting the moisture content of glutinous rice flour according to the present utility model;

[0020] Figure 3 Block diagram of the electrical structure of Embodiment 2 of an apparatus for adjusting the moisture content of glutinous rice flour according to the present utility model;

[0021] In the figure: 1, heat exchanger; 2, air inlet silencer; 3, pulverizer; 4, powder conveying pipe; 5, cyclone separator; 6, air lock; 7, temperature sensor; 8, controller; 9, rice material inlet; 10, medium inlet; 11, medium outlet; 12, humidity sensor; 13, spraying device. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment 1 of an apparatus for adjusting the moisture content of glutinous rice flour according to the present utility model:

[0024] The specific structure of an apparatus for adjusting the moisture content of glutinous rice flour in this embodiment is as Figure 1 shown, including a heat exchanger 1, an air inlet silencer 2, a pulverizer 3, a powder conveying pipe 4, a cyclone separator 5 and an air lock 6 connected in sequence, and further including a controller 8. The heat exchanger 1 includes an air flow inlet and an air flow outlet. Air enters the heat exchanger 1 through the air flow inlet, is cooled or heated in the heat exchanger 1, and then enters the air inlet silencer 2 through the air flow outlet for noise reduction.

[0025] The heat exchanger 1 is further provided with a medium inlet 10 and a medium outlet 11. When the temperature of the medium entering through the medium inlet 10 exceeds the temperature of the air entering it, the heat exchanger 1 operates in the heating mode and can heat the air in the cavity; when the temperature of the medium entering through the medium inlet 10 is lower than the temperature of the air entering it, the heat exchanger 1 operates in the cooling mode and can cool the air in the cavity. The heat medium and the cold medium circulate in their respective circulation pipelines. By switching the opening and closing states of the valves on the corresponding circulation pipelines, the heat medium enters the heat exchanger 1 or the cold medium enters the heat exchanger. The specific structure and temperature control principle of the heat exchanger 1 are both prior arts. Only the main principle is introduced in this application, and its specific structure will not be elaborated further.

[0026] The rice grinder 3 is provided with a rice material inlet 9. Through the high-speed rotation of the rice grinder 3, a large adsorption force is generated to suck the soaked rice material into the interior of the rice grinder 3 from the rice material inlet 9. The glutinous rice is ground into powder by the grinding components inside the rice grinder 5. The high-pressure air entering the production line from the heat exchanger 1 carries the glutinous rice powder and enters the cyclone separator 5 through the powder conveying pipe 6. In the cyclone separator 5, the glutinous rice powder and the gas are separated. The separated glutinous rice powder is conveyed out through the air lock 6, and the conveyed glutinous rice powder is the finished glutinous rice powder product that can be directly used.

[0027] A temperature sensor 7 is provided at the heat exchanger 1 of the heat exchanger 1. The temperature sensor 7 is used to detect the air temperature entering the heat exchanger 1 from the outside. The temperature sensor 7 is electrically connected to an input end of the controller 8 to transmit the detected air temperature value to it. The heat exchanger 1 is controlled to operate in the refrigeration mode or the heating mode by switching the valves on the circulating pipelines for supplying the heat medium or the cold medium to the heat exchanger 1. The controller 8 adjusts the temperature of the medium entering the heat exchanger 1 according to the deviation value between the set temperature and the adjusted temperature, so as to ensure that the air temperature blown into the subsequent equipment from the air flow outlet remains within a relatively stable temperature range.

[0028] The way for the controller 8 to control the temperatures of the cold and heat media can be to directly control the temperatures of the cold and heat media entering the heat exchanger 1. For example, heating devices that can be controlled to open are added to some pipe sections of the heat medium circulating pipeline, and refrigeration devices that can be controlled to open are added to some pipe sections of the cold medium circulating pipeline. The way for the controller 8 to control the temperatures of the cold and heat media can also be to indirectly control the temperature in the heat exchanger 1 by controlling the amounts of the cold and heat media entering the heat exchanger 1. This part belongs to the prior art and will not be elaborated in this application.

[0029] Specifically, after the moisture content of the glutinous rice powder ground by the production line of the present utility model is measured by the national standard moisture measurement method, the moisture fluctuation range from the expected moisture content is ±1%. When the room temperature air is directly introduced into the production line in the prior art, the moisture fluctuation range of the ground glutinous rice powder is ±7%. The stability of the moisture content of the glutinous rice powder is improved. At the same time, by adjusting the medium temperature of the heat exchanger 1, glutinous rice powder with different moisture contents can be obtained.

[0030] The reason is that: during the process of the air flow with stable temperature carrying the glutinous rice powder flowing backward, the influence degree on the moisture content in the glutinous rice powder is uniform, which can ensure that the moisture content of the finally obtained glutinous rice powder tends to be stable. In the prior art, the room temperature air is introduced. When the room temperature is high, the high-temperature air will overly adsorb the moisture in the glutinous rice powder, making its moisture content too low; when the room temperature is low, the low-temperature air adsorbs too little moisture in the glutinous rice powder, making its moisture content too high. This ultimately leads to the unstable moisture content of the ground glutinous rice powder in the prior art and a large difference.

[0031] In this embodiment, the heat exchanger 1 is an air heat exchanger, and its specific model is GLⅡ-24-60

[0032] Embodiment 2 of the device for adjusting the moisture content of glutinous rice flour of the present utility model:

[0033] The difference between Embodiment 2 and Embodiment 1 is that a humidity sensor 12 and a spraying device 13 are provided at the heat exchanger 1. The humidity sensor 12 is electrically connected to another input end of the controller 8 to transmit the detected air flow humidity value to it, and the spraying device 13 is electrically connected to an output end of the controller 8 to be controlled to spray water to the air flow. The controller 8 adjusts the opening degree of the spraying device 13 according to the deviation value between the set humidity and the adjusted humidity, so as to ensure that the air humidity blown into the subsequent device from the air flow outlet is maintained within a relatively stable temperature range.

[0034] It should be emphasized that in the practical process, the problem that always appears is that the air humidity entering the air heat exchanger from the heat exchanger 1 is too low. Therefore, in the present utility model, there is no need to set an actuator for reducing air humidity.

[0035] Embodiment 3 of the device for adjusting the moisture content of glutinous rice flour of the present utility model:

[0036] The difference between Embodiment 3 and Embodiment 2 is that: the spraying port of the spraying device 13 is located inside the air inlet silencer 2, and the air humidified by the spraying device 13 is the air sent into the air inlet silencer 2 from the air flow outlet. Since the spraying device 13 sprays misty water vapor, placing the spraying port inside the silencer 2 will not affect the silencing effect.

[0037] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A device for adjusting the moisture content of glutinous rice flour, comprising a pulverizer, a conveying pipe, a cyclone separator and an air lock connected in sequence, wherein the pulverizer is provided with a rice material inlet and an air inlet for air flow, characterized in that: It also includes a heat exchanger and a controller, wherein the heat exchanger includes an air flow inlet and an air flow outlet, and the heat exchanger is used to adjust the temperature of the air flow entering from the air flow inlet and send the temperature-adjusted air flow into the air inlet through the air flow outlet; A temperature sensor is provided at the air flow inlet, and the temperature sensor is electrically connected to an input end of the controller to transmit the detected air flow temperature value thereto, and the heat exchanger is electrically connected to an output end of the controller to controllably cool or heat the air flow in the cavity.

2. The device for adjusting the moisture content of glutinous rice flour according to claim 1, characterized in that: A humidity sensor is also provided at the air flow inlet, and a spray device is also provided between the air flow outlet and the air inlet. The humidity sensor is electrically connected to another input end of the controller to transmit the detected air flow humidity value thereto, and the spray device is electrically connected to an output end of the controller to spray water to the air flow in a controlled manner.

3. The device for adjusting the moisture content of glutinous rice flour according to claim 2, characterized in that: An air inlet silencer is also arranged between the heat exchanger and the pulverizer, and two ends of the air inlet silencer are respectively connected to the air flow outlet and the air inlet.

4. The device for adjusting the moisture content of glutinous rice flour according to claim 3, characterized in that: The spray device comprises a spray port for spraying spray, and the spray port is located in the air inlet silencer.

5. The device for adjusting the moisture content of glutinous rice flour according to claim 3, characterized in that: The spray device comprises a spray port for spraying spray, and the spray port is located at the air flow inlet.

6. A device for adjusting the moisture content of glutinous rice flour according to any one of claims 1 to 5, characterized in that: The heat exchanger is an air heat exchanger.

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