CN110749522B - Crushing type coal quality identification device - Google Patents
Crushing type coal quality identification device Download PDFInfo
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- CN110749522B CN110749522B CN201911109269.2A CN201911109269A CN110749522B CN 110749522 B CN110749522 B CN 110749522B CN 201911109269 A CN201911109269 A CN 201911109269A CN 110749522 B CN110749522 B CN 110749522B
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/02—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
The invention discloses a crushing coal quality identification device, which comprises a combustion box, wherein a middle cavity is arranged in the combustion box, the middle cavity is internally provided with a quantitative crushing mechanism which comprises a guide plate arranged in the middle cavity, an iron block is fixedly arranged on the right side of the lower end surface of the guide plate, a discharge cavity and a storage cavity with upward openings are arranged in the lower end wall of the middle cavity, the storage cavity is positioned in the right end wall of the discharge cavity, the device can automatically obtain quantitative coal and simultaneously detect ash content, heat productivity and sulfur content of the coal, can comprehensively analyze the quality of the coal, has higher automation degree, only needs to read after the coal is burnt, does not need to observe the burning, is time-saving and labor-saving, and by controlling the quality of the coal, the possibility of generating errors is avoided to a greater extent, and the quality of the coal can be analyzed more accurately.
Description
Technical Field
The invention relates to the field of coal correlation, in particular to a crushing type coal quality identification device.
Background
Coal is used as an energy resource, mainly burned for producing electricity and/or heat, and also for industrial use, such as refining metals, or producing fertilizers and many chemical products, the quality of coal is of great importance when in use, the quality of coal is mainly determined by ash, heat productivity and sulfur content, most of the existing quality detection of coal needs to detect different data respectively through different instruments, the operation is complex, and many manual operations are needed in the middle, the automation degree is low, and time and labor are wasted.
Disclosure of Invention
The invention aims to provide a crushing type coal quality identification device, which solves the problems of complex coal quality detection steps, time and labor waste and the like.
The invention is realized by the following technical scheme.
The invention relates to a crushing type coal quality identification device, which comprises a combustion box, wherein a middle cavity is arranged in the combustion box, a quantitative crushing mechanism is arranged in the middle cavity, the quantitative crushing mechanism comprises a guide plate arranged in the middle cavity, an iron block is fixedly arranged on the right side of the lower end surface of the guide plate, a discharge cavity and a storage cavity with upward openings are arranged in the lower end wall of the middle cavity, the storage cavity is positioned in the right end wall of the discharge cavity, a first electromagnet is embedded between the discharge cavity and the storage cavity, a crusher is arranged in the upper end wall of the middle cavity and is used for crushing coal blocks into coal powder, the coal powder can enter the storage cavity to be stored under the guiding action of the guide plate, when the coal powder in the storage cavity is accumulated to a certain mass, the first electromagnet can be electrified to generate magnetic force to attract the iron block, so that the guide plate rotates, the generated coal dust generated by the pulverizer can be guided into the discharge cavity at the moment and does not enter the storage cavity any more;
the steam mechanism is arranged on the right side of the middle cavity and comprises a water cavity arranged in the right end wall of the middle cavity, water is filled in the water cavity, a top cavity with a downward opening is arranged in the upper end wall of the water cavity, a rotatable turbine is arranged in the top cavity, a generator is arranged in the top cavity, the upper end face of the generator is connected with a first display screen, the turbine can be driven to rotate by steam generated after the water in the water cavity is heated, electric energy can be added into the generator through the rotation of the turbine, and the added electric energy can be displayed on the first display screen;
steam mechanism downside is equipped with gaseous detection mechanism, gaseous detection mechanism is including burning the chamber, the burning chamber with be equipped with the suction fan between the storage chamber, the buggy of storing the intracavity collection can get into under the effect of suction fan the burning intracavity is burnt, thereby the heating water in the water cavity, be equipped with the chamber of breathing in that the opening faces left in the burning chamber right-hand member wall, the intracavity of breathing in is equipped with the flabellum, the flabellum by the vapor drive that steam mechanism work produced rotates, be equipped with the opening in the chamber lower extreme wall of breathing in and face right place the chamber, it is equipped with the beaker to place the intracavity, be equipped with the sodium hydroxide solution in the beaker, through the rotation of flabellum can with the sulfur dioxide that burning intracavity buggy burning produced is discharged absorb in the beaker.
Preferably, the quantitative crushing mechanism further comprises a positioning rod fixedly connected with the rear end wall of the middle cavity, the guide plate is rotatably arranged on the positioning rod through the torsion spring, the left and right end walls of the middle cavity are symmetrically and fixedly provided with stop blocks, the lower end wall of the storage cavity is fixedly provided with a support block, a pressure cavity with an upward opening is arranged in the upper end surface of the support block, the lower end wall of the pressure cavity is symmetrically and fixedly provided with two pressure springs, the upper end of each pressure spring is fixedly provided with a moving block in sliding connection with the pressure cavity, the upper end surface of the moving block penetrates through the upper end wall of the pressure cavity and is fixedly provided with a top plate, an electromagnetic cavity with a leftward opening is arranged in the left end surface of the moving block, the right end wall of the electromagnetic cavity is fixedly provided with a second electromagnet, the left end surface of the second electromagnet is fixedly provided with an, the utility model discloses a flexible electric iron, including storage chamber, power chamber, telescopic spring right-hand member, power chamber left end wall, power chamber right end wall, power chamber left end wall is equipped with the intercommunication the chamber that stretches out of storage chamber, be equipped with the power chamber in the storage chamber left end wall, power chamber right end wall is through lining up the chamber intercommunication the storage chamber, the fixed power that is equipped with of power chamber left end wall, be equipped with the flexible chamber that the opening faces the right side in the power right-hand member face, the fixed telescopic spring that is equipped with of flexible chamber left end wall, the telescopic spring right-hand member fixed.
Preferably, the gas detection mechanism further comprises a rotating motor embedded in the left end wall of the combustion chamber, a driving shaft is rotatably arranged on the right end face of the rotating motor, a turning plate is fixedly arranged on the right end of the driving shaft, an igniter is fixedly arranged on the right end wall of the combustion chamber, a first switch is arranged in the rear end wall of the combustion chamber, a first electronic scale is embedded in the lower end wall of the combustion chamber, the right end face of the first electronic scale is connected with a second display screen, a second electronic scale is arranged in the lower end wall of the placing chamber, the right end face of the second electronic scale is connected with a third display screen, a connecting chamber is arranged in the upper end wall of the top chamber, an output shaft with the lower end positioned in the air suction chamber is rotatably arranged on the right side of the upper end wall of the connecting chamber, an output belt pulley is fixedly arranged on the output shaft in the connecting chamber, the fan blades are, the left end wall of the combustion cavity is communicated with the external space through a ventilation cavity.
Preferably, steam mechanism still including rotate the setting and be in the electricity generation axle of terminal surface under the generator, electricity generation axle lower extreme is located the top intracavity, the turbine is fixed to be set up electricity generation axle lower extreme, connect the intracavity electricity generation epaxial fixedly being equipped with the input band pulley, the input band pulley with the output band pulley passes through belt friction drive, top chamber upper end wall passes through exhaust chamber intercommunication external space, be equipped with the second switch in the water cavity rear end wall.
Preferably, the combustion chamber and the turning plate are circular in the up-down direction and equal in size.
Preferably, the electromagnetic spring is in a compressed state.
The invention has the beneficial effects that: this device can gain quantitative coal automatically to carry out the ash content of coal simultaneously to it, calorific capacity and contain the sulphur content and detect, can comparatively synthesize carry out the analysis to the quality of coal, and device degree of automation is higher, only needs the reading after the coal burning is accomplished, need not to observe the burning, and ten minutes labour saving and time saving, and through the quality of control coal, avoided the possibility of producing the error to a great extent, can comparatively accurate carry out the analysis to the quality of coal.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a whole full-section front view structure of a pulverized coal quality identification apparatus according to the present invention;
FIG. 2 is an enlarged view of the point A in FIG. 1;
fig. 3 is an enlarged schematic view of B in fig. 1.
Detailed Description
The invention will now be described in detail with reference to fig. 1-3, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
With reference to fig. 1-3, the crushing coal quality identification device includes a combustion box 10, a middle chamber 19 is provided in the combustion box 10, a quantitative crushing mechanism 80 is provided in the middle chamber 19, the quantitative crushing mechanism 80 includes a guide plate 16 provided in the middle chamber 19, an iron block 13 is fixedly provided on the right side of the lower end surface of the guide plate 16, a discharge chamber 12 and a storage chamber 49 with upward openings are provided in the lower end wall of the middle chamber 19, the storage chamber 49 is provided in the right end wall of the discharge chamber 12, a first electromagnet 11 is embedded between the discharge chamber 12 and the storage chamber 49, a crusher 21 is provided in the upper end wall of the middle chamber 19, the crusher 21 is used for crushing coal blocks into coal powder, the coal powder can enter the storage chamber 49 to be stored under the guiding action of the guide plate 16, when the coal powder in the storage chamber 49 is accumulated to a certain quality, the first electromagnet 11 is electrified to generate magnetic force to attract the iron block 13, so that the guide plate 16 rotates, and the generated coal dust generated by the pulverizer 21 is guided into the discharge cavity 12 and does not enter the storage cavity 49 any more;
a steam mechanism 82 is arranged on the right side of the middle cavity 19, the steam mechanism 82 comprises a water cavity 33 arranged in the right end wall of the middle cavity 19, water is filled in the water cavity 33, a top cavity 31 with a downward opening is arranged in the upper end wall of the water cavity 33, a rotatable turbine 30 is arranged in the top cavity 31, a generator 28 is arranged in the top cavity 31, the upper end face of the generator 28 is connected with a first display screen 27, steam generated after the water in the water cavity 33 is heated can drive the turbine 30 to rotate, electric energy can be added into the generator 28 through the rotation of the turbine 30, and the added electric energy can be displayed on the first display screen 27;
a gas detection mechanism 81 is arranged at the lower side of the steam mechanism 82, the gas detection mechanism 81 comprises a combustion chamber 34, a suction fan 48 is arranged between the combustion chamber 34 and the storage chamber 49, the pulverized coal collected in the storage chamber 49 can enter the combustion chamber 34 to be combusted under the action of the suction fan 48, thereby heating the water in the water cavity 33, a suction cavity 35 with an opening facing to the left is arranged in the right end wall of the combustion cavity 34, the inside of the air suction cavity 35 is provided with fan blades 36, the fan blades 36 are driven to rotate by the water vapor generated by the operation of the steam mechanism 82, a placing cavity 38 with an opening facing to the right is arranged in the lower end wall of the air suction cavity 35, a beaker 39 is arranged in the placing cavity 38, sodium hydroxide solution is filled in the beaker 39, sulfur dioxide generated by burning the pulverized coal in the combustion chamber 34 can be discharged into the beaker 39 to be absorbed through the rotation of the fan blades 36.
Beneficially, the quantitative crushing mechanism 80 further comprises a positioning rod 14 fixedly connected with the rear end wall of the middle cavity 19, the guide plate 16 is rotatably arranged on the positioning rod 14 through the torsion spring 15, the left and right end walls of the middle cavity 19 are symmetrically and fixedly provided with a stop block 17, the lower end wall of the storage cavity 49 is fixedly provided with a support block 65, the upper end surface of the support block 65 is internally provided with a pressure cavity 64 with an upward opening, the lower end wall of the pressure cavity 64 is symmetrically and fixedly provided with two pressure springs 67, the upper end of each pressure spring 67 is fixedly provided with a moving block 59 slidably connected with the pressure cavity 64, the upper end surface of each moving block 59 penetrates through the upper end wall of the pressure cavity 64 and is fixedly provided with a top plate 63, the left end surface of the moving block 59 is internally provided with an electromagnetic cavity 60 with an opening facing left, the right end wall of the electromagnetic cavity 60 is fixedly provided with a second, the left end of the electromagnetic spring 61 is fixedly provided with a pressure block 66 which is connected with the electromagnetic cavity 60 in a sliding manner, the left end wall of the pressure cavity 64 is provided with a communicating cavity 58 of the storage cavity 49, the left end wall of the storage cavity 49 is internally provided with a power cavity 57, the right end wall of the power cavity 57 is communicated with the storage cavity 49 through a through cavity 51, the left end wall of the power cavity 57 is fixedly provided with a power supply 55, the right end face of the power supply 55 is internally provided with a telescopic cavity 56 with an opening facing right, the left end wall of the telescopic cavity 56 is fixedly provided with a telescopic spring 54, the right end of the telescopic spring 54 is fixedly provided with a telescopic rod 53 which is connected with the telescopic cavity 56 in a sliding manner, the right end of the telescopic rod 53 is positioned in the power cavity 57 and is fixedly provided.
Beneficially, the gas detection mechanism 81 further includes a rotating motor 47 embedded in the left end wall of the combustion chamber 34, a driving shaft 46 is rotatably disposed on the right end face of the rotating motor 47, a turning plate 43 is fixedly disposed on the right end of the driving shaft 46, an igniter 70 is fixedly disposed on the right end wall of the combustion chamber 34, a first switch 44 is disposed in the rear end wall of the combustion chamber 34, a first electronic scale 45 is embedded in the lower end wall of the combustion chamber 34, a second display 42 is connected to the right end face of the first electronic scale 45, a second electronic scale 41 is disposed in the lower end wall of the placing chamber 38, a third display 40 is connected to the right end face of the second electronic scale 41, a connecting chamber 68 is disposed in the upper end wall of the top chamber 31, an output shaft 29 with the lower end located in the air suction chamber 35 is rotatably disposed on the right side of the upper end wall of the connecting chamber 68, an output pulley, the fan blades 36 are fixedly arranged on the output shaft 29, the lower end wall of the air suction cavity 35 is connected with a hose 37 inserted into the beaker 39, and the left end wall of the combustion cavity 34 is communicated with the external space through the ventilation cavity 25.
Advantageously, the steam mechanism 82 further includes a power generation shaft 24 rotatably disposed on a lower end surface of the generator 28, a lower end of the power generation shaft 24 is located in the top chamber 31, the turbine 30 is fixedly disposed on a lower end of the power generation shaft 24, an input pulley 23 is fixedly disposed on the power generation shaft 24 in the connection chamber 68, the input pulley 23 and the output pulley 69 are in friction transmission through a belt 22, an upper end wall of the top chamber 31 is communicated with an external space through an exhaust chamber 26, and a second switch 32 is disposed in a rear end wall of the water chamber 33.
Advantageously, the combustion chamber 34 and the flap 43 are circular and of equal size in the vertical direction.
Advantageously, said electromagnetic spring 61 is in a compressed state.
Sequence of mechanical actions of the whole device:
in the initial state: the water cavity 33 is filled with water, and the beaker 39 is filled with sodium hydroxide solution.
(1) The coal briquette is put into the pulverizer 21 to be pulverized, pulverized coal enters the storage cavity 49 under the guidance of the guide plate 16 to be stored, the pulverized coal is accumulated and becomes heavy on the top plate 63, the top plate 63 is pushed to descend, the pressure spring 67 is compressed, the pressure block 66 descends along with the top plate 63 until the pressure block 66 moves to the position of the extending cavity 58, the electromagnetic spring 61 resets, the pressure block 66 is driven to penetrate through the extending cavity 58, the through cavity 51 and the pushing plug 52 to be inserted into the power supply 55, and the telescopic spring 54 is compressed.
(2) Through the conduction of electric wire 50, power 55 makes first electro-magnet 11 circular telegram, and first electro-magnet 11 circular telegram produces magnetic force, attracts iron plate 13, drives iron plate 13 and rotates, and deflector 16 rotates along with iron plate 13, and torsional spring 15 is compressed, and deflector 16 moves to right side dog 17 on, makes rubbing crusher 21 produce the buggy and does not get into in the storage chamber 49 to discharge from discharging chamber 12, and the user observes the buggy and discharges, closes rubbing crusher 21, and stops to add the coal cinder.
(3) The suction fan 48 is started, the coal powder in the storage cavity 49 is sucked into the combustion cavity 34, the igniter 70 is started, the coal powder in the combustion cavity 34 is ignited, the coal powder in the combustion cavity 34 is combusted to heat water in the water cavity 33, water in the water cavity 33 is evaporated to generate steam, the turbine 30 is driven to rotate, the power generation shaft 24 rotates along with the turbine 30 and drives the input belt wheel 23 to rotate, the power generation shaft 24 rotates in the power generator 28 to enable the power generator 28 to store electric energy, and the amount of the stored electric energy can be observed through the first display screen 27.
(4) Through the friction transmission of the belt 22, the input belt wheel 23 drives the output belt wheel 69 to rotate, the fan blades 36 rotate along with the output belt wheel 69, the gas in the combustion chamber 34 can be discharged into the beaker 39, the sulfur dioxide in the gas is absorbed by the sodium hydroxide solution in the beaker 39, and the second electronic scale 41 can weigh the mass of the beaker 39 and display the mass on the third display screen 40.
(5) After complete combustion and temperature reduction, the rotating motor 47 is started to drive the driving shaft 46 to rotate, the turning plate 43 rotates along with the driving shaft 46, residues left after coal combustion are poured to the upper end face of the first electronic scale 45, the first electronic scale 45 can measure the mass of the coal combustion residues and display the mass on the second display screen 42, and the second display screen 42, the third display screen 40 and the first display screen 27 are recorded for performing mass analysis on the coal.
(6) When the next coal quality analysis is to be carried out, the second electromagnet 62 is electrified to attract the pressure block 66, the pressure block 66 is driven to retract into the electromagnetic cavity 60, the pressure spring 67 is reset to drive the movement block 59 to reset, the sodium hydroxide solution in the beaker 39 is replaced, the first switch 44 is opened, the combustion residues in the combustion cavity 34 are taken out, and the identification can be carried out again.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (4)
1. The utility model provides a crushing-type coal quality identification device, includes the burning box, its characterized in that: a middle cavity is arranged in the combustion box, a quantitative crushing mechanism is arranged in the middle cavity, the quantitative crushing mechanism comprises a guide plate arranged in the middle cavity, an iron block is fixedly arranged on the right side of the lower end surface of the guide plate, a discharge cavity and a storage cavity with upward openings are arranged in the lower end wall of the middle cavity, the storage cavity is positioned in the right end wall of the discharge cavity, a first electromagnet is embedded between the discharge cavity and the storage cavity, a pulverizer is arranged in the upper end wall of the middle cavity and is used for pulverizing the coal briquettes into coal dust, the coal dust can enter the storage cavity to be stored under the guiding action of the guide plate, when the coal dust in the storage cavity is accumulated to a certain mass, the first electromagnet is electrified to generate magnetic force to attract the iron block, so that the guide plate rotates, and the generated coal dust generated by the pulverizer can be guided into the discharge cavity at the moment and does not enter the storage cavity any more; the steam mechanism is arranged on the right side of the middle cavity and comprises a water cavity arranged in the right end wall of the middle cavity, water is filled in the water cavity, a top cavity with a downward opening is arranged in the upper end wall of the water cavity, a rotatable turbine is arranged in the top cavity, a generator is arranged in the top cavity, the upper end face of the generator is connected with a first display screen, the turbine can be driven to rotate by steam generated after the water in the water cavity is heated, electric energy can be added into the generator through the rotation of the turbine, and the added electric energy can be displayed on the first display screen; the lower side of the steam mechanism is provided with a gas detection mechanism, the gas detection mechanism comprises a combustion chamber, a suction fan is oppositely arranged between the combustion chamber and the storage chamber, pulverized coal collected in the storage chamber can enter the combustion chamber to be combusted under the action of the suction fan, so that water in the water chamber is heated, an air suction chamber with an opening facing to the left is arranged in the wall at the right end of the combustion chamber, fan blades are arranged in the air suction chamber, the fan blades are driven to rotate by water vapor generated by the work of the steam mechanism, a placing chamber with an opening facing to the right is arranged in the wall at the lower end of the air suction chamber, a beaker is arranged in the placing chamber, a sodium hydroxide solution is filled in the beaker, and sulfur dioxide generated by the combustion of the pulverized coal in the combustion chamber can be discharged into the beaker to be absorbed through the rotation of; the quantitative crushing mechanism also comprises a positioning rod fixedly connected with the rear end wall of the middle cavity, the guide plate is rotationally arranged on the positioning rod through a torsional spring, the left and right end walls of the middle cavity are symmetrically and fixedly provided with stop blocks, the lower end wall of the storage cavity is fixedly provided with a supporting block, the upper end face of the supporting block is internally provided with a pressure cavity with an upward opening, the lower end wall of the pressure cavity is symmetrically and fixedly provided with two pressure springs, the upper end of each pressure spring is fixedly provided with a moving block which is in sliding connection with the pressure cavity, the upper end face of the moving block penetrates through the upper end wall of the pressure cavity and is fixedly provided with a top plate, the left end face of the moving block is internally provided with an electromagnetic cavity with a leftward opening, the right end wall of the electromagnetic cavity is fixedly provided with a second electromagnet, the left end face of the second, the left end wall of the pressure cavity is provided with an extending cavity communicated with the storage cavity, a power cavity is arranged in the left end wall of the storage cavity, the right end wall of the power cavity is communicated with the storage cavity through a through cavity, a power source is fixedly arranged on the left end wall of the power cavity, a telescopic cavity with an opening facing right is arranged in the right end face of the power source, a telescopic spring is fixedly arranged on the left end wall of the telescopic cavity, a telescopic rod which is connected with the telescopic cavity in a sliding mode is fixedly arranged on the right end of the telescopic spring, a plug is fixedly arranged at the right end of the telescopic rod in the power cavity, and the plug and the; the gas detection mechanism also comprises a rotating motor embedded in the left end wall of the combustion cavity, the right end face of the rotating motor is rotatably provided with a driving shaft, the right end of the driving shaft is fixedly provided with a turning plate, the right end wall of the combustion cavity is fixedly provided with an igniter, the rear end wall of the combustion cavity is internally provided with a first switch, the lower end wall of the combustion cavity is embedded with a first electronic scale, the right end face of the first electronic scale is connected with a second display screen, the lower end wall of the placing cavity is internally provided with a second electronic scale, the right end face of the second electronic scale is connected with a third display screen, the upper end wall of the top cavity is internally provided with a connecting cavity, the right side of the upper end wall of the connecting cavity is rotatably provided with an output shaft with the lower end positioned in the air suction cavity, the output shaft in the connecting cavity is fixedly provided with an output belt pulley, the left end wall of the combustion cavity is communicated with the external space through a ventilation cavity.
2. The pulverized coal quality identifying device according to claim 1, characterized in that: the steam mechanism is still including rotating the setting and being in the electricity generation axle of terminal surface under the generator, electricity generation axle lower extreme is located the top intracavity, the turbine is fixed to be set up electricity generation axle lower extreme, connect the intracavity electricity generation epaxial fixed input band pulley that is equipped with of electricity generation, input band pulley passes through belt friction drive with output band pulley, top chamber upper end wall passes through the external space of exhaust chamber intercommunication, be equipped with the second switch in the water cavity rear end wall.
3. The pulverized coal quality identifying device according to claim 2, characterized in that: the combustion chamber and the turning plate are circular in the up-down direction and equal in size.
4. The pulverized coal quality identifying device according to claim 3, characterized in that: the electromagnetic spring is in a compressed state.
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| CN201911109269.2A CN110749522B (en) | 2019-11-13 | 2019-11-13 | Crushing type coal quality identification device |
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| CN201911109269.2A CN110749522B (en) | 2019-11-13 | 2019-11-13 | Crushing type coal quality identification device |
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| CN110749522B true CN110749522B (en) | 2020-09-22 |
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