CN217878981U

CN217878981U - Device for measuring highest internal moisture of coal

Info

Publication number: CN217878981U
Application number: CN202221385116.8U
Authority: CN
Inventors: 林文一; 孙创奇; 黄芹第; 张玉劲; 简灿辉; 李阳庆; 覃明军; 何焰文; 肖丹; 冼学玲
Original assignee: Guangdong Engineering Technology Research Institute Co ltd
Current assignee: Guangdong Engineering Technology Research Institute Co ltd
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-11-22
Anticipated expiration: 2032-06-02

Abstract

The utility model relates to a highest intrinsic moisture survey device of coal, including mainframe box, heating element, cooling module and temperature control component, the mainframe box includes box and measuring element, is equipped with the measurement chamber that is used for supplying measuring element to place in the box, measures and is equipped with air inlet and gas outlet on the chamber respectively, measures the intracavity and still is equipped with potassium sulphate saturated solution. The box still is equipped with the water bath chamber, and water bath chamber ring is established outside measuring the chamber, water inlet and delivery port respectively on the water bath chamber. The measuring component is provided with an air circulation component and a plurality of utensils for placing samples, an air inlet of the air circulation component is communicated with the measuring cavity, the air circulation component is provided with a plurality of air outlets, and the plurality of air outlets are correspondingly arranged right above the utensils. The heating assembly and the cooling assembly are used to heat and cool the water bath, respectively. The temperature control component comprises a temperature sensor which is arranged in the measuring cavity. The utility model has the advantages of being simple in structure and convenient in operation, can realize water-bath heating and refrigerated accuse temperature operation, guarantee measured data's accuracy.

Description

Highest intrinsic moisture survey device of coal

Technical Field

The utility model relates to a coal quality check out test set technical field especially relates to the highest inherent moisture determination device of a coal.

Background

According to the requirements of national standards, when the highest internal moisture of coal is measured, the detection temperature needs to be kept at 30 +/-0.1 ℃ for a long time, and the humidity needs to be kept at more than 96%. When the device is used for testing, the operation is troublesome, errors of measured data are easy to occur, and the measurement precision is low.

SUMMERY OF THE UTILITY MODEL

Therefore, the highest intrinsic moisture content measuring device for coal is needed to solve the problems, is simple in structure and convenient to operate, can effectively realize temperature control operation of water bath heating and cooling, and is favorable for ensuring accuracy of measured data.

The technical scheme is as follows:

in one aspect, there is provided an apparatus for measuring highest intrinsic moisture of coal, comprising:

the measuring device comprises a mainframe box, a measuring device and a controller, wherein the mainframe box comprises a box body and a measuring assembly, a measuring cavity for placing the measuring assembly is arranged in the box body, an air inlet and an air outlet are respectively arranged on the measuring cavity, and a potassium sulfate saturated solution is also arranged in the measuring cavity; the box body is also provided with a water bath cavity which is annularly arranged outside the measuring cavity, and the water bath cavity is respectively provided with a water inlet and a water outlet; the measuring component is provided with an air circulation component and a plurality of vessels for placing samples, an air inlet of the air circulation component is communicated with the measuring cavity, the air circulation component is provided with a plurality of air outlets, and the air outlets are correspondingly arranged right above the vessels;

the heating assembly is used for heating the medium in the water bath cavity;

a cooling assembly for cooling the medium within the water bath chamber;

the temperature control assembly comprises a temperature sensor, and the temperature sensor is arranged in the measuring cavity.

The technical solution is further explained below:

in one embodiment, the heating device further comprises a control assembly, and the control assembly is respectively connected with the main case, the heating assembly, the cooling assembly and the temperature control assembly.

In one embodiment, the temperature control assembly further comprises a controller electrically connected to the heating assembly and the cooling assembly, respectively.

In one embodiment, the heating assembly comprises a heating tube disposed within the water bath chamber.

In one embodiment, the cooling assembly comprises a water circulation cooling component, the water bath cavity is provided with a cold water port for inputting cooling water into the water circulation cooling component, and the water outlet is connected with the water circulation cooling component through a pipeline.

In one embodiment, the cold water port is arranged at one side of the water bath cavity, which is provided with the heating assembly.

In one embodiment, the measuring assembly further comprises a rest plate on which the vessel rests; the ventilation pipe of the wind circulation component penetrates through the object placing plate, and the air inlet is formed below the object placing plate.

In one embodiment, a sealing plate is further arranged on the measuring assembly, and the measuring assembly is connected with the measuring cavity in a sealing mode through the sealing plate.

In one embodiment, a meter for detecting the gas flow is further connected to the gas inlet.

In one embodiment, an insulating layer is arranged in the outer side wall of the water bath cavity.

The utility model has the advantages that:

compared with the prior art, the utility model discloses a highest inherent moisture survey device of coal, through placing measuring assembly in measuring the intracavity, and realize carrying out temperature control to measuring the chamber through the water bath chamber that measures the chamber outside, wherein realize the lift control of temperature respectively through heating element and cooling module, combine temperature sensor, can conveniently be at 30 0.1 ℃ of the scope with experimental temperature control, and can produce the relative humidity more than 96% when 30 0.1 ℃ through the potassium sulphate saturated solution that sets up at the holding intracavity, with guarantee that the coal quality survey environment accords with the national standard requirement, be favorable to guaranteeing the measuring accuracy.

Furthermore, the air inlet of the air circulation component faces the potassium sulfate saturated solution, and the air outlet is arranged right above the utensil, so that air directly blows to the coal sample in the utensil, the test humidity of the coal sample accessory is favorably kept above 96%, and the measurement accuracy is further ensured.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained without creative efforts.

FIG. 1 is a schematic diagram of a coal maximum intrinsic moisture measurement apparatus according to one embodiment;

FIG. 2 is a schematic structural view of the main cabinet of FIG. 1;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic structural view of a case in one embodiment;

FIG. 5 is a schematic diagram of a measurement assembly in one embodiment.

Description of reference numerals:

100. a main chassis; 110. a box body; 111. a measurement cavity; 112. a water bath cavity; 1121. an outer sidewall; 1122. a heat-insulating layer; 120. a measurement assembly; 121. a wind circulation member; 1211. a ventilation pipe; 1212. an air inlet; 1213. An air outlet; 1214. a fan; 122. a cover plate; 123. a handle; 124. a sealing plate; 125. a storage plate; 131. an air inlet; 132. an air outlet; 141. a water inlet; 142. a water outlet; 150. a cold water port; 160. A vessel; 210. heating a tube; 300. a cooling assembly; 410. a temperature sensor; 510. saturated solution of potassium sulfate; 520. crystallizing potassium sulfate; 530. a support; 540. a container; 600. a control component; 700. a meter.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

As shown in fig. 1 to 5, in one embodiment, there is provided a coal maximum intrinsic moisture measuring apparatus, including a main cabinet 100, a heating assembly, a cooling assembly 300 and a temperature control assembly, wherein the main cabinet 100 includes a cabinet 110 and a measuring assembly 120, a measuring chamber 111 for placing the measuring assembly 120 is provided in the cabinet 110, a gas inlet 131 for inputting nitrogen gas and a gas outlet 132 for discharging gas in the measuring chamber 111 are provided on the measuring chamber 111, and a potassium sulfate saturated solution 510 is further provided in the measuring chamber 111. The box body 110 is further provided with a water bath cavity 112, the water bath cavity 112 is annularly arranged outside the measuring cavity 111, and the water bath cavity 112 is provided with a water inlet 141 and a water outlet 142 respectively. The measuring assembly 120 is provided with an air circulation member 121 and a plurality of vessels 160 for placing samples, an air inlet 1212 of the air circulation member 121 is communicated with the measuring cavity 111, the air circulation member is provided with a plurality of air outlets 1213, and the plurality of air outlets 1213 are correspondingly arranged right above the plurality of vessels 160. The heating assembly and the cooling assembly 300 are used to heat and cool the medium within the water bath cavity 112, respectively. In practical application, the adopted common medium is water, and the taking and the use are convenient. The temperature control assembly comprises a temperature sensor 410, the temperature sensor 410 being arranged within the measurement chamber 111.

In this embodiment, through placing measuring unit 120 in measuring chamber 111, and realize carrying out temperature control to measuring chamber 111 through the water bath chamber 112 of measuring the chamber 111 outside, wherein realize the lift control of temperature respectively through heating element and cooling module 300, combine temperature sensor 410, can conveniently be in 30 + -0.1 ℃ within range with experimental temperature control, and can produce the relative humidity more than 96% when 30 + -0.1 ℃ through the potassium sulphate saturated solution 510 that sets up in the holding intracavity, in order to guarantee that the coal quality survey environment accords with the national standard requirement, be favorable to guaranteeing the accuracy of measurement.

Further, the air inlet 1212 of the air circulation member 121 is disposed toward the potassium sulfate saturated solution 510, and the air outlet 1213 is disposed right above the container 160, so that the air directly blows to the coal sample in the container 160, which is beneficial to ensuring that the test humidity of the coal sample accessory is kept above 96%, and further ensuring the measurement accuracy. In practical operation, in order to ensure the saturation degree of the saturated potassium sulfate solution 510, a mixed medium of the saturated potassium sulfate solution 510 and the potassium sulfate crystal 520 is usually used.

In one embodiment, the measurement assembly 120 includes a cover plate 122 for sealing the measurement chamber 111 and the water bath chamber 112, and a handle 123 is provided on the cover plate 122 to facilitate the extraction and placement of the measurement assembly 120 by the experimenter. Further, a sealing plate 124 is further arranged on the cover plate 122 and used for further sealing the measuring cavity 111, so that the stability of the test environment in the measuring cavity 111 is ensured, and the normal operation of the test is ensured. In addition, in actual operation, the sealing plate 124 can be made of a heat-insulating material, so that the temperature loss of the measurement cavity 111 can be effectively avoided, and the temperature stability in the measurement cavity 111 can be guaranteed.

In one embodiment, a control module 600 is further included, and the control module 600 is connected to the main cabinet 100, the heating module, the cooling module 300 and the temperature control module, respectively. Because this experiment needs to carry out three days in succession, if continuously need the whole control of experimenter, can increase experimenter's intensity of labour, be unfavorable for the experimenter healthy moreover. Through control assembly 600, can realize the operation of automatic test and accuse temperature, when beginning the experiment, through control assembly 600, control heating element heats the water bath and reach the experimental temperature requirement. Then, the temperature sensor 410 monitors the temperature of the measuring cavity 111 in the whole process, and when the temperature is too high, the control assembly 600 controls the cooling assembly 300 to perform water circulation cooling. Otherwise, when the temperature sensor 410 detects that the temperature is too low, the control component 600 controls the heating component to continue heating. In this process, the wind circulation member 121 of the measuring assembly 120 is continuously controlled by the control assembly 600 to continuously draw and supply air.

In one embodiment, the temperature control assembly further comprises a controller electrically connected to the heating assembly and the cooling assembly 300, respectively. In actual operation, the controller is disposed in the control assembly 600, the detected temperature abnormality signal is transmitted to the controller through the temperature sensor 410, and the controller controls the heating assembly or the cooling assembly 300 to perform heating or cooling operation through the control assembly 600. Degree of automation is high, convenient operation can save more human input, realizes automated inspection.

In one embodiment, the heating assembly comprises a heating tube 210, the heating tube 210 is disposed within the water bath chamber 112, and heating of the water bath within the water bath chamber 112 is achieved by the heating tube 210.

In one embodiment, the cooling module 300 comprises a water circulation cooling member, the water bath cavity 112 is provided with a cold water port 150 for supplying cooling water to the water circulation cooling member, and the water outlet 142 is connected with the water circulation cooling member through a pipeline. In practical application, the adopted water circulation cooling structure is a small cooling tower, so that water can be effectively cooled, and water circulation is realized through power equipment such as a water pump. After the test is completed, the pipe between the water outlet 142 and the water-circulating cooling member can be removed, and then the water in the water bath cavity 112 can be directly discharged through the water outlet 142.

In one embodiment, the cold water port 150 is disposed at a side of the water bath cavity 112 where the heating element is disposed to prevent the cooling water from entering the water bath cavity 112 to cause a sudden temperature drop of the water bath, which results in a sudden temperature drop in the measurement cavity 111 and thus causes measurement errors.

In one embodiment, the measurement assembly 120 further includes a placement plate 125, and the vessel 160 is placed on the placement plate 125. The placement of the dish 160 is facilitated by the placement plate 125. Further, the ventilation pipe 1211 of the wind circulation member 121 penetrates the placing plate 125, and the air inlet 1212 is disposed under the placing plate 125 and directs the air inlet 1212 toward the saturated potassium sulfate solution 510 disposed under the placing plate 125. In practice, a support 530 is further disposed in the measurement chamber 111, the support 530 is disposed at the bottom of the measurement chamber 111, the saturated potassium sulfate solution 510 is disposed in the container 540, and the container 540 with the saturated potassium sulfate solution 510 is disposed on the support 530.

In one embodiment, a fan 1214 is provided within the ventilation tube 1211, and in actual operation, a small fan 1214 is employed to effect the operation of the circulation of the wind. Adopt small-size fan 1214 structure can realize the operation of wind circulation degree of difficulty, effectively avoid adopting the great fan structure of the complicated weight of structure moreover, lead to measuring component 120 weight too big and make the operation degree of difficulty of drawing and placing higher.

In one embodiment, the gas inlet 131 is further connected with a meter 700 for detecting a gas flow rate, so as to detect the input condition of nitrogen, and facilitate the experimenter to observe and record the condition of the test process.

In one embodiment, the insulating layer 1122 is disposed inside the outer sidewall 1121 of the water bath cavity 112, so as to effectively avoid excessive heat exchange between the temperature of the water bath cavity 112 and the external environment, which is beneficial to reducing energy consumption of the whole device. Meanwhile, potential safety hazards such as scalding of experimenters caused by overheating of the outer side wall 1121 of the water bath cavity 112 can be effectively avoided.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An apparatus for determining the highest intrinsic moisture of coal, comprising:

the device comprises a mainframe box (100), wherein the mainframe box (100) comprises a box body (110) and a measuring component (120), a measuring cavity (111) for placing the measuring component (120) is arranged in the box body (110), an air inlet (131) and an air outlet (132) are respectively arranged on the measuring cavity (111), and a potassium sulfate saturated solution (510) is also arranged in the measuring cavity (111); the box body (110) is also provided with a water bath cavity (112), the water bath cavity (112) is annularly arranged on the outer side of the measuring cavity (111), and the water bath cavity (112) is respectively provided with a water inlet (141) and a water outlet (142); the measuring assembly (120) is provided with an air circulation component (121) and a plurality of vessels (160) for placing samples, an air inlet (1212) of the air circulation component (121) is communicated with the measuring cavity (111) and is arranged towards the potassium sulfate saturated solution (510), the air circulation is provided with a plurality of air outlets (1213), and the air outlets (1213) are correspondingly arranged right above the vessels (160);

a heating assembly for heating the medium in the water bath chamber (112);

a cooling assembly (300) for cooling the medium within the water bath chamber (112);

a temperature control assembly comprising a temperature sensor (410), the temperature sensor (410) being disposed within the measurement cavity (111).

2. The coal maximum intrinsic moisture apparatus of claim 1, further comprising a control module (600), wherein the control module (600) is connected to the main cabinet (100), the heating module, the cooling module (300) and the temperature control module, respectively.

3. The coal maximum intrinsic moisture apparatus of claim 1, wherein the temperature control assembly further comprises a controller electrically connected to the heating assembly and the cooling assembly (300), respectively.

4. The coal maximum intrinsic moisture determining apparatus according to claim 1, wherein said heating assembly comprises a heating tube (210), said heating tube (210) being disposed within said water bath chamber (112).

5. The coal maximum intrinsic moisture measuring device according to claim 1, wherein the cooling assembly (300) comprises a water circulating cooling member, a cold water port (150) for inputting cooling water to the water circulating cooling member is arranged on the water bath cavity (112), and the water outlet (142) is connected with the water circulating cooling member through a pipeline.

6. The apparatus for determining the highest intrinsic moisture of coal according to claim 5, wherein the cold water port (150) is provided at a side of the water bath chamber (112) where the heating unit is provided.

7. The coal maximum intrinsic moisture determining apparatus of claim 1, wherein the measuring assembly (120) further comprises a shelf (125), the vessel (160) being placed on the shelf (125); the ventilation pipe (1211) of the wind circulation component (121) penetrates through the object placing plate (125), and the air inlet (1212) is arranged below the object placing plate (125).

8. The coal maximum intrinsic moisture measuring device according to claim 7, wherein a sealing plate (124) is further provided on the measuring assembly (120), and the measuring assembly (120) is hermetically connected to the measuring chamber (111) through the sealing plate (124).

9. The apparatus for measuring the highest intrinsic moisture of coal according to claim 1, wherein a meter (700) for detecting a gas flow rate is further connected to the gas inlet (131).

10. The apparatus for determining the highest intrinsic moisture of coal according to claim 1, wherein an insulating layer (1122) is provided in an outer side wall (1121) of the water bath chamber (112).