Anti-blocking detector device in a raw coal silo of a thermal power plant

Abstract

The invention relates to the technical field of storage, in particular to an anti-blocking detector device in a raw coal silo of a thermal power plant.The detector device comprises a training arrangement with a storage device, the storage device comprising a raw coal silo, a partition wall in a central part of the raw coal silo and a hyperbolic discharge line on a bottom side of the raw coal silo, and a detector arrangement with a mounting shell on a side wall of the raw coal silo and the hyperbolic discharge line, a sealing element arranged on the side facing the raw coal silo within the mounting shell, a fastening element at a rear end of the seal, a gear element between the sealing element and the fastening element, an adjustment element movably connected to the gear element, and a laser detector for coal level in a central part of the fastening element.The problems are eliminated by the fact that when replacing a faulty coal level detector, the coal level detector is difficult to disassemble or fix, and that during disassembly, the dust of the coal flow enters the workshop through a mounting hole and causes serious environmental pollution.

Description

Technical area

[0001] The invention relates to the technical field of storage, in particular to an anti-blocking detector device in a raw coal silo of a thermal power plant. State of the art

[0002] In a raw coal silo of a thermal power plant, due to the inaccurate indication of the coal level in the raw coal silo, additional personnel must be deployed on site to monitor the coal level during filling or refilling, otherwise an abnormal event such as a large amount of coal spillage may occur. Typically, a new type of dynamic level monitoring system for a raw coal silo is used to enable accurate indication of the coal level during filling or refilling through a belt, thus freeing up personnel and preventing problems such as overflow and spillage of coal on site caused by the inaccuracy of the raw coal silo level. In addition, by increasing the accuracy of the raw coal silo level during filling, the program-controlled automatic starting or stopping of the coal silo can be achieved.Completion of filling can be achieved, which increases the automation level of the coal transmission system and improves the reliability of the power plant.

[0003] However, most coal level monitoring systems in a raw coal silo of a coal-fired power plant permanently mount multiple laser coal level detectors. When a coal level detector fails and needs to be replaced, problems arise: the coal level detector is difficult to disassemble or reattach, and during disassembly, coal flow dust enters the workshop through a mounting hole, causing serious environmental pollution. Disclosure of the invention

[0004] This section aims to generally explain some aspects of the embodiments of the invention and briefly introduce some preferred embodiments. In this section, the abstract of the application and the title of the invention may be simplified or abbreviated to avoid confusing the purpose of this section, the abstract, and the title of the invention. Such simplification or abbreviation is not intended to limit the scope of the invention.

[0005] In view of the above-mentioned problems that the coal level detector is difficult to disassemble or fix and that during disassembly, the dust of the coal flow enters the workshop through a mounting hole and causes serious environmental pollution, the present invention is proposed.

[0006] Therefore, the invention provides an anti-blocking detection device in a raw coal silo of a thermal power plant.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: The detector device comprises a formation assembly with a storage device, the storage device comprising a raw coal silo, a partition wall in a middle part of the raw coal silo and a hyperbolic drain line at a bottom of the raw coal silo, and a detector assembly with a mounting shell on a side wall of the raw coal silo, a sealing member arranged on the side facing the raw coal silo inside the mounting shell, a fixing member at a rear end of the sealing member, a gear member between the sealing member and the fixing member, an adjustment member movably connected to the gear member, and a laser detector for coal level in a middle part of the fixing member.

[0008] As a preferred solution of the inventive detector device for anti-blocking in a raw coal silo of a thermal power plant, the sealing element is provided with a joint shell, a joint ball, and a mounting rod. The joint shell is arranged within the mounting shell, facing the raw coal silo. The joint ball is arranged within the joint shell and is connected to the joint shell in a pivoted manner. A detection opening is provided in a central part of the joint ball. The mounting rod is firmly connected to both sides of the joint ball.

[0009] As a preferred solution of the inventive detector device for anti-blocking in a raw coal silo of a thermal power plant, the mounting rod comprises a round mounting rod, a pivoting rod, and a connecting rod. The round mounting rod penetrates the joint shell and is firmly connected to both sides of the joint ball. The pivoting rod is firmly connected to an end of the round mounting rod facing away from the joint ball. The connecting rod is firmly connected to an end of the pivoting rod facing away from the round mounting rod.

[0010] As a preferred solution of the inventive detector device for anti-blocking in a raw coal silo of a thermal power plant, it is provided that the fastening element comprises a fastening disc, a fastening block, an elastic block, and a first return spring. The fastening disc is firmly connected to the fastening shell. A plurality of sliding grooves are provided in the fastening disc. The fastening block is arranged in the sliding groove and slidably connected to the fastening disc by the sliding groove. A pressure bevel is provided at a rear end of the fastening block. The elastic block is arranged at a front end of the fastening block. One end of the first return spring is firmly connected to the fastening block, and the other end of the first return spring is firmly connected to the fastening disc.

[0011] As a preferred solution of the inventive detector device for anti-blocking in a raw coal silo of a thermal power plant, it is provided that the fastening element further comprises a flexible disk, a pressure bend, a stop rod, a fastening plate, and a second return spring. The flexible disk is pivotally connected to the fastening disk. The pressure bend is firmly connected to the flexible disk. The pressure bend is fitted to the fastening block by the pressure bevel. The stop rod is firmly connected to the flexible disk. The fastening plate is firmly connected to the fastening disk. One end of the second return spring is firmly connected to the fastening plate, and the other end of the second return spring is firmly connected to the stop rod.

[0012] As a preferred solution of the inventive detector device for anti-blocking in a raw coal silo of a thermal power plant, it is provided that the gear element comprises a recessed pressure plate, a sealing ring, a third return spring, a long fastening plate, a connecting slide rod, a long slide rod, a stop block, and a first compression spring. The recessed pressure plate is slidably connected to the fastening shell, and an end of the recessed pressure plate facing the joint ball is fitted to the detection opening of the joint ball. The sealing ring is firmly connected to an end of the recessed pressure plate facing away from the joint ball. One end of the third return spring is firmly connected to the recessed pressure plate, and the other end of the third return spring is firmly connected to the joint shell. The long fastening plate is firmly connected to the recessed pressure plate.The connecting slide rod is firmly connected to one side of the long fixing plate. The long slide rod is slidably connected to the recessed pressure plate and the fixing disc. A short sliding groove is provided in the long slide rod, and the short sliding groove is fitted to the connecting slide rod. The stop block is firmly connected to one end of the long slide rod facing the flexible disc, and the stop block is fitted to the stop rod. The first compression spring is mounted on the long slide rod. One end of the first compression spring is firmly connected to the stop block, and the other end of the first compression spring is firmly connected to the fixing disc.

[0013] As a preferred solution of the inventive anti-blocking detector device in a raw coal silo of a thermal power plant, the long mounting plate comprises a sliding plate and a mounting rack. The sliding plate is firmly connected to the recessed pressure plate. The mounting rack is arranged in an upper part of the sliding plate. An L-shaped groove is provided in a lower part of the sliding plate. The L-shaped groove is fitted to the connecting rod.

[0014] As a preferred solution of the inventive detector device for anti-blocking in a raw coal silo of a thermal power plant, it is provided that the adjustment element comprises a mounting bracket, a toothed block, a connecting slide bar, a grooved slide block, and a second compression spring. The mounting bracket is fixedly connected to the mounting shell. The toothed block is arranged in the mounting bracket and slidably connected to the mounting bracket. The toothed block engages the mounting rack. The connecting slide bar is fixedly connected to the toothed block, and the connecting slide bar is slidably connected to the mounting bracket. The grooved slide block is fixedly connected to the connecting slide bar, and an auxiliary slide groove is provided in the grooved slide block.One end of the second compression spring is firmly connected to the grooved sliding block and the other end of the second compression spring is firmly connected to the mounting bracket.

[0015] As a preferred solution of the inventive detection device for anti-blocking in a raw coal silo of a thermal power plant, it is provided that the adjustment element further comprises an auxiliary block, a push rod, and a third compression spring. The auxiliary block is slidably connected to the mounting bracket, and the auxiliary block is fitted to the grooved sliding block through the auxiliary sliding groove. The push rod is slidably connected to the mounting shell, and the push rod is fixedly connected to the auxiliary block. The third compression spring is mounted on the push rod. One end of the third compression spring is fixedly connected to the mounting shell, and the other end of the third compression spring is fixedly connected to the push rod.

[0016] As a preferred solution of the inventive detector device for anti-blocking in a raw coal silo of a thermal power plant, it is provided that the storage device further comprises a bidirectional slide valve between the raw coal silo and the hyperbolic discharge line, a tuning fork coal flow meter on the hyperbolic discharge line, a first gas cylinder on one side of the tuning fork coal flow meter, a compressed air nozzle lance fixedly connected to the first gas cylinder, and a protective cover outside the tuning fork coal flow meter and the compressed air nozzle lance.

[0017] The invention has the following advantageous effects: When a blockage is detected in the discharge line of the raw coal silo under the action of the laser coal level detector and the tuning fork coal flowmeter, a signal is sent from a program to an air cannon, which allows the coal flow to pass smoothly via the compressed air nozzle lance, in order to clear the path for the coal flow in time before a complete solid blockage occurs. During the filling of the raw coal silo by a transmission belt, the coal level of the raw coal silo is monitored in real time by the laser coal level detector. When the level is high, either the operation of the transmission belt is automatically stopped or the plow-type coal unloader is transferred from the current raw coal silo to the next raw coal silo to enable the program-controlled automatic start and stop of the filling.

[0018] By providing a firm connection between the mounting bracket and the side walls of the raw coal silo and the hyperbolic discharge line, the gear element can be set in motion when the coal level laser detector to be mounted is inserted by pressing the front end of the coal level laser detector against the gear element. The movement of the gear element drives the sealing element, breaking the seal. Upon further pressing against the gear element, the mounting element secures the coal level laser detector under the action of the gear element. The fit between the gear element and the adjustment element only permits movement of the gear element toward the position where the coal level laser detector is to be mounted, while movement in the opposite direction is prohibited, to better secure the coal level laser detector.The sealing element allows the coal level laser detector to detect the coal level in real time. When the coal level laser detector is to be disassembled, the adjustment element is pressed, so that the springback of the gear element removes the limitation of the reverse movement caused by the gear element and the adjustment element, and the fastening of the coal level laser detector caused by the fastening element. The sealing element then seals the fastening shell. This eliminates the problems of difficulty in disassembling or attaching the coal level detector when replacing a faulty coal level detector, and the problems of coal flow dust entering the workshop through the mounting hole during disassembly, causing serious environmental pollution. Short description of the characters

[0019] To more clearly explain the technical solutions in the embodiments of the invention, the drawings required to describe the embodiments are briefly presented below. Obviously, the drawings in the following description represent only a few embodiments of the invention. Those skilled in the art can also derive further drawings based on these drawings without inventive activity. In the figures: Fig. 1 is a schematic view of the entire structure of an anti-blocking detection device in a raw coal silo of a thermal power plant of the present invention. Fig. 2 is a schematic view of the structure of a bearing device of the anti-blocking detecting device in a raw coal silo of a thermal power plant of the present invention. Fig. 3 is a first sectional view of a detector assembly of the anti-blocking detecting device in a raw coal silo of a thermal power plant of the present invention. Fig. 4 is a second sectional view of the detector assembly of the anti-blocking detecting device in a raw coal silo of a thermal power plant of the present invention. Fig. 5 is a first schematic view of the structure of the detector assembly of the anti-blocking detecting device in a raw coal silo of a thermal power plant of the present invention. Fig. 6 is a schematic view of the structure of a gear member and a sealing member of the anti-blocking detecting device in a raw coal silo of a thermal power plant of the present invention. Fig. 7 is a schematic view of the structure of a gear member and a fixing member of the anti-blocking detecting device in a raw coal silo of a thermal power plant of the present invention. Fig. 8 is a schematic view of the structure of a fixing member of the anti-blocking detecting device in a raw coal silo of a thermal power plant of the present invention. Fig. 9 is a schematic view of the structure of an adjusting element of the anti-blocking detecting device in a raw coal silo of a thermal power plant of the present invention. Fig. 10 is an enlarged view at location A of Fig. 9. Detailed embodiments

[0020] In the following, the detailed embodiments of the present invention will be explained in more detail in conjunction with the figures of the description in order to make the aforementioned objects, features and advantages of the present invention clearer and easier to understand.

[0021] In the following description, numerous specific details are set forth to provide a sufficient understanding of the invention. However, the invention may be embodied otherwise than as described herein, and those skilled in the art may make similar modifications without departing from the spirit of the invention. Therefore, the invention should not be limited to the specific embodiments disclosed below.

[0022] As used herein, the terms "one embodiment" or "an embodiment" or "an embodiment" refer to a specific feature, structure, or characteristic included in at least one embodiment of the invention. The terms "in one embodiment" appearing in various places in the specification do not necessarily refer to the same embodiment, nor do they necessarily refer to an embodiment that contradicts itself or, alternatively, another embodiment.

[0023] Furthermore, the invention is described in more detail in conjunction with the schematic figures. To facilitate the description, the sectional views of the structural elements in the detailed description of the embodiments of the invention are not shown to scale, but rather are shown in enlarged sections. These schematic figures are merely exemplary and are not intended to limit the scope of the invention. In practical production, the three-dimensional dimensions of length, width, and height should be specified. Example 1

[0024] With reference to Fig. 1 - Fig. Figure 3 shows a schematic view of the entire structure of an anti-blocking detection device in a raw coal silo of a thermal power plant. The anti-blocking detection device in a raw coal silo of a thermal power plant includes a formation assembly 100 having a storage facility 101. The storage facility 101 includes a raw coal silo 101a, a partition wall 101b in a central part of the raw coal silo 101a, and a hyperbolic discharge line 101c at a bottom of the raw coal silo 101a. The raw coal enters the hyperbolic discharge line 101c from the raw coal silo 101a.

[0025] The detector device further comprises a detector assembly 200 having a mounting shell 201 on a side wall of the raw coal silo 101a, a sealing element 202 disposed within the mounting shell 201 on the side facing the raw coal silo 101a, a fastening element 203 at a rear end of the sealing element 202, a gear element 204 between the sealing element 202 and the fastening element 203, an adjustment element 205 movably connected to the gear element 204, and a coal level laser detector 206 in a central part of the fastening element 203. A plurality of detector assemblies 200 are arranged at a vertical distance of 1 meter from each other (18 detector assemblies on one side of the raw coal silo, a total of 36 detector assemblies) to achieve high accuracy.The fixing member 203 is used for mounting and fixing the coal level laser detector 206, and the sealing member 202 is used for sealing the fixing hole of the fixing tray 201 when removing the coal level laser detector 206 for checking or replacing, so as to prevent the coal flow dust from entering the workshop through the fixing hole.

[0026] Furthermore, the storage facility 101 further comprises a bidirectional gate valve 101d between the raw coal silo 101a and the hyperbolic discharge line 101c, a tuning fork coal flow meter 101e on the hyperbolic discharge line 101c, a first gas cylinder 101f on one side of the tuning fork coal flow meter 101e, a compressed air nozzle lance 101g fixedly connected to the first gas cylinder 101f, and a protective sheath 101h outside the tuning fork coal flow meter 101e and the compressed air nozzle lance 101g. A tuning fork coal flow meter 101e is arranged on one side of the hyperbolic discharge line 101c corresponding to each raw coal silo 101a, so that a signal emitted by the tuning fork coal flow meter 101e alerts the responsible personnel that appropriate action is required. The compressed air nozzle lance 101g enables the coal flow to flow smoothly through bubbles.

[0027] The procedure is as follows. As soon as a blockage is detected in the discharge line of the raw coal silo 101a under the action of the laser coal level detector 206 and the tuning fork coal flow meter 101e, a signal is sent from a program to an air cannon, which allows the coal flow to flow smoothly via the compressed air nozzle lance 101g, in order to clear the path for the coal flow in time before a complete blockage occurs. As the raw coal silo 101a is filled via a transmission belt, the coal level of the raw coal silo is monitored in real time by the laser coal level detector 206. When the filling level is high, either the operation of the transmission belt is automatically stopped or the plow-type coal unloader is transferred from the current raw coal silo 101a to the next raw coal silo 101a to enable the program-controlled automatic start and stop of the filling.

[0028] By providing a firm connection between the mounting shell 201 and the side walls of the raw coal silo 101a and the hyperbolic discharge line 101c, the gear element 204 can be set in motion when the coal level laser detector 206 to be mounted is inserted by pressing the front end of the coal level laser detector 206 against the gear element 204. The movement of the gear element 204 drives the sealing element 202, breaking the seal, and upon further pressing against the gear element 204, the mounting element 203 secures the coal level laser detector 206 under the action of the gear element 204.Due to the fit between the gear element 204 and the adjustment element 205, only the movement of the gear element 204 in the direction of the position in which the coal level laser detector 206 is to be attached is permitted, while movement in the opposite direction is prohibited to facilitate the attachment of the coal level laser detector 206. In this case, the sealing element 202 allows the coal level laser detector 206 to detect the coal level in real time. When the coal level laser detector 206 is to be disassembled, the adjustment element 205 is pressed, so that the springback of the gear element 204 removes the limitation of movement in the opposite direction caused by the gear element 204 and the adjustment element 205 and the attachment of the coal level laser detector 206 caused by the attachment element 203.Then, the mounting shell 201 is sealed by the sealing element 202. This eliminates the problems that when replacing a faulty coal level detector, the coal level detector is difficult to disassemble or attach, and that during disassembly, coal flow dust enters the workshop through a mounting hole, causing serious environmental pollution. Example 2

[0029] With reference to Fig. 1 - Fig. 8, this embodiment differs from the first embodiment in the following aspects. The sealing element 202 comprises a joint shell 202a, a joint ball 202b, and a fastening rod 202c. The joint shell 202a is arranged within the fastening shell 201, facing the raw coal silo 101a. The joint ball 202b is arranged within the joint shell 202a and is pivotally connected to the joint shell 202a. A detection opening 202b-1 is provided in a central part of the joint ball 202b. The fastening rod 202c is fixedly connected to both sides of the joint ball 202b. The fastening rod 202c comprises a round fastening rod 202c-1, a pivot rod 202c-2, and a connecting rod 202c-3. The round fixing rod 202c-1 penetrates the joint shell 202a and is firmly connected to the two sides of the joint ball 202b.The pivot rod 202c-2 is firmly connected to an end of the round mounting rod 202c-1 facing away from the joint ball 202b. The connecting rod 202c-3 is firmly connected to an end of the pivot rod 202c-2 facing away from the round mounting rod 202c-1. When the mounting rod 202c is pivoted by the connecting rod 202c-3, the joint ball 202b is rotated. When the detection opening 202b-1 of the joint ball 202b is aligned parallel to the mounting cup 201, the attached coal level laser detector 206 is in a fixed and detecting state. If the detection opening 202b-1 of the joint ball 202b is aligned at an inclination to the fastening shell 201, the fastening shell 201 is sealed by the fit of the joint ball 202b to the joint shell 202a.

[0030] Specifically, the fastening element 203 includes a fastening disc 203a, a fastening block 203b, an elastic block 203c, and a first return spring 203d. The fastening disc 203a is fixedly connected to the fastening shell 201. A plurality of sliding grooves 203a-1 are provided in the fastening disc 203a. The fastening block 203b is arranged in the sliding groove 203a-1 and is slidably connected to the fastening disc 203a by the sliding groove 203a-1. A pressure bevel 203b-1 is provided at a rear end of the fastening block 203b. The elastic block 203c is arranged at a front end of the fastening block 203b. The elastic block 203c is firmly connected to the fixing block 203b, and the elastic block 203c has a certain elasticity so that the coal level laser detector 206 is not damaged when the coal level laser detector 206 is fixed.One end of the first return spring 203d is fixedly connected to the mounting block 203b, and the other end of the first return spring 203d is fixedly connected to the mounting disk 203a. The first return spring 203d serves to return the mounting block 203b after the release of the coal level laser detector 206. The mounting element 203 further includes a flexible disk 203e, a pressure plate 203f, a stop rod 203g, a mounting plate 203h, and a second return spring 203i. The flexible disk 203e is pivotally connected to the mounting disk 203a. The flexible disk 203e rotates on the mounting disk 203a. The pressure plate 203f is fixedly connected to the flexible disk 203e. The pressure sheet 203f is fitted to the mounting block 203b by the pressure bevel 203b-1.The rotation of the flexible disc 203e drives the mounting block 203b and the elastic block 203c through the pressure plate 203f to secure the coal level laser detector 206. The stopper rod 203g is fixedly connected to the flexible disc 203e. The mounting plate 203h is fixedly connected to the mounting disc 203a. One end of the second return spring 203i is fixedly connected to the mounting plate 203h, and the other end of the second return spring 203d is fixedly connected to the stopper rod 203g. The second return spring 203i serves to return the flexible disc 203e after the coal level laser detector 206 is released.

[0031] The gear element 204 further includes a recessed pressure plate 204a, a sealing ring 204b, a third return spring 204c, a long fixing plate 204d, a connecting slide rod 204e, a long slide rod 204f, a stop block 204g, and a first compression spring 204h. The recessed pressure plate 204a is slidably connected to the fixing shell 201, and an end of the recessed pressure plate 204a facing the joint ball 202b is fitted to the detection opening 202b-1 of the joint ball 202b. In the fixed coal level laser detector 206, the end of the recessed pressure plate 204a facing the joint ball 202b is located in the detection opening 202b-1 of the joint ball 202b to prevent the escape of coal flow dust after the fixed coal level laser detector 206 is fixed. The sealing ring 204b is firmly connected to an end of the recessed pressure plate 204a facing away from the joint ball 202b.One end of the third return spring 204c is fixedly connected to the recessed pressure plate 204a, and the other end of the third return spring 204c is fixedly connected to the joint shell 202a. The long fixing plate 204d is fixedly connected to the recessed pressure plate 204a. The connecting slide rod 204e is fixedly connected to one side of the long fixing plate 204d. The long slide rod 204f is slidably connected to the recessed pressure plate 204a and the fixing disc 203a. A short slide groove 204f-1 is provided in the long slide rod 204f, and the short slide groove 204f-1 fits the connecting slide rod 204e. The connecting slide rod 204e slides in the short slide groove 204f-1. The stop block 204g is firmly connected to one end of the long slide rod 204f facing the flexible disc 203e, and the stop block 204g is fitted to the stop rod 203g. The first compression spring 204h is mounted on the long slide rod 204f.One end of the first compression spring 204h is fixedly connected to the stop block 204g, and the other end of the first compression spring 204h is fixedly connected to the fixing disc 203a. The first compression spring 204h serves to reset the long slide rod 204f and the stop block 204g.

[0032] The long fixing plate 204d further includes a sliding plate 204d-1 and a fixing rack 204d-2. The sliding plate 204d-1 is fixedly connected to the recessed pressure plate 204a. The fixing rack 204d-2 is arranged in an upper part of the sliding plate 204d-1. An L-shaped groove 204d-3 is provided in a lower part of the sliding plate 204d-1. The L-shaped groove 204d-3 is fitted to the connecting rod 202c-3. The connecting rod 202c-3 is arranged in the L-shaped groove 204d-3. The connecting rod 202c-3 slides in the L-shaped groove 204d-3. When the gear element 204 slides downward, the connecting rod 202c-3 slides in the shorter horizontal leg of the L-shaped groove 204d-3, so that the joint ball 202b is rotated.As the gear member 204 slides further downward beyond the point where the sealing member 202 breaks the seal, the connecting rod 202c-3 slides out of the shorter horizontal leg of the L-shaped groove 204d-3 and into the longer vertical leg of the L-shaped groove 204d-3. At this point, the connecting rod 202c-3 and the joint ball 202b no longer rotate, so that the fastening member 203 secures the coal level laser detector 206.

[0033] The remaining structures are the same as in Example 1.

[0034] The procedure is as follows. By providing the recessed pressure plate 204a of the gear element 204, the gear element 204 is set in motion when a detection head of the coal level laser detector 206 is pressed against the recessed pressure plate 204a. The movement of the gear element 204 causes the connecting rod 202c-3 and the joint ball 202b to rotate through the L-shaped groove 204d-3 of the long mounting plate 204d to release the seal created by the sealing element 202. If the detection opening 202b-1 of the joint ball 202b is aligned parallel to the fastening shell 201, the connecting rod 202c-3 slides in the longer vertical leg of the L-shaped groove 204d-3 when the recessed pressure plate 204a is further pressed downwards, so that the gear element 204 no longer causes the joint ball 202b to rotate.The gear member 204 drives the mounting block 203b of the mounting member 203 for mounting the laser coal level detector 206 through the connecting slide rod 204e and the short slide groove 204f-1 of the long slide rod 204f. This solves the problems that the coal level detector is difficult to mount and that coal flow dust enters the workshop through a mounting hole during disassembly, causing serious environmental pollution. Example 3

[0035] With reference to Fig. 1 - Fig.10, this embodiment differs from the previous embodiment in the following aspects. The adjustment element 205 includes a mounting bracket 205a, a toothed block 205b, a connecting slide rod 205c, a grooved slide block 205d, and a second compression spring 205e. The mounting bracket 205a is fixedly connected to the mounting shell 201. The toothed block 205b is arranged in the mounting bracket 205a and is slidably connected to the mounting bracket 205a. The toothed block 205b engages with the mounting rack 204d-2. Due to the fit between the toothed block 205b and the rack, only the movement of the gear element 204 in the direction of the position in which the coal level laser detector 206 is to be mounted is permitted, while movement in the opposite direction is prohibited.The connecting slide rod 205c is fixedly connected to the toothed block 205b, and the connecting slide rod 205c is slidably connected to the mounting bracket 205a. The grooved slide block 205d is fixedly connected to the connecting slide rod 205c, and an auxiliary slide groove 205d-1 is provided in the grooved slide block 205d. One end of the second compression spring 205e is fixedly connected to the grooved slide block 205d, and the other end of the second compression spring 205e is fixedly connected to the mounting bracket 205a. The second compression spring 205e is used to press the toothed block 205b so that it slides and engages with the rack.

[0036] The adjustment element 205 further includes an auxiliary block 205f, a push rod 205g, and a third compression spring 205h. The auxiliary block 205f is slidably connected to the mounting bracket 205a, and the auxiliary block 205f is fitted to the grooved slide block 205d through the auxiliary slide groove 205d-1. The push rod 205g is slidably connected to the mounting shell 201, and the push rod 205g is fixedly connected to the auxiliary block 205f. The third compression spring 205h is mounted on the push rod 205g. One end of the third compression spring 205h is fixedly connected to the mounting shell 201, and the other end of the third compression spring 205h is fixedly connected to the push rod 205g. When the push rod 205g is pressed, the toothed block 205b is slid by the fit between the auxiliary block 205f and the grooved sliding block 205d, so that the engagement between the toothed block 205b and the rack is canceled.

[0037] The remaining structures are the same as in Example 2.

[0038] The procedure is as follows. By providing the toothed block 205b, the toothed block 205b engages the rack under the action of the second compression spring 205e. The engagement between the toothed block 205b and the rack only allows the movement of the gear element 204 in the direction of the position in which the coal level laser detector 206 is to be mounted. When the push rod 205g is pressed, the toothed block 205b is slid by the fit between the auxiliary block 205f and the grooved sliding block 205d, so that the engagement between the toothed block 205b and the rack is released. This allows movement of the gear member 204 in the opposite direction and thus removes the fixing of the coal level laser detector 206 by the fixing member 203, which facilitates disassembly of the coal level laser detector 206.Thus, the sealing element 202, under the action of the third return spring 204c, drives the joint ball 202b to seal. This solves the problems of difficulty in disassembly and the problem of coal dust entering the workshop through an assembly hole during disassembly, causing serious environmental pollution.

[0039] It is important to note that the structures and arrangements illustrated in several different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in the disclosure, one skilled in the art will readily understand, with reference to this disclosure, that many variations (such as size, dimension, structure, shape, ratio, values ​​of parameters (such as temperature, pressure, etc.), arrangement, use of material, color, change of orientation, and the like) are possible without materially departing from the novel teachings and advantages of the subject matter described in the application.For example, an element shown as integrally formed may be formed from multiple parts or elements, the position of the element may be reversed or otherwise altered, and the property, number, or position of a discrete element may be changed or altered. Therefore, all such variations are intended to be included within the scope of the invention. Depending on the alternative embodiments, the order or sequence of all processes or method steps may be changed or rearranged. In the claims, each set of devices having functions is intended to include the structure described herein for performing the functions that is not only structurally equivalent, but also functionally equivalent.Other substitutions, variations, modifications, and deletions may be made to the configurations, operating states, and arrangements of the exemplary embodiments without departing from the scope of the invention. Therefore, the invention should not be limited to specific embodiments, but may be expanded to include a variety of variations that are still within the scope of the appended claims.

[0040] Moreover, in order to provide a concise description of the exemplary embodiments, it is possible that not all features of the actual embodiments will be described, that is, the features that are currently independent of the best mode for carrying out the invention or that are independent of the implementation of the invention will not be described.

[0041] It should be understood that during the development of an actual embodiment, such as in a project or design process, many decisions may be made for a specific embodiment. Such development work can be complex and time-consuming, but does not require too much trial and error for those skilled in the art, having the benefit of the present disclosure, so this development work is considered to be ordinary work in the field of design, manufacturing, and production.

[0042] It should be noted that the above embodiments serve only to illustrate the technical solutions of the invention without limiting them. Although the invention has been described in detail above using the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalent substitutions of the technical solutions of the invention can be made without departing from the spirit and scope of the technical solutions of the invention, which are intended to be included within the scope of the claims of the invention.

Claims

[1] Anti-blocking detector device in a raw coal silo of a thermal power plant, characterized by that the detector device comprises: a training arrangement (100) with a storage facility (101), wherein the storage facility (101) comprises a raw coal silo (101a), a partition wall (101b) in a central part of the raw coal silo (101a) and a hyperbolic discharge line (101c) at a bottom of the raw coal silo (101a), and a detector arrangement (200) with a fastening shell (201) on a side wall of the raw coal silo (101a), a sealing element (202) which is arranged on the side facing the raw coal silo (101a) within the fastening shell (201), a fastening element (203) at a rear end of the sealing element (202), a gear element (204) between the sealing element (202) and the fastening element (203), an adjustment element (205) which is movably connected to the gear element (204), and a laser detector for coal level (206) in a central part of the fastening element (203). [2] An anti-blocking detection device in a raw coal silo of a thermal power plant according to claim 1, characterized byin that the sealing element (202) comprises a joint shell (202a), a joint ball (202b) and a fastening rod (202c), wherein the joint shell (202a) is arranged within the fastening shell (201) facing the raw coal silo (101a), wherein the joint ball (202b) is connected to the joint shell (202a) in a articulated manner within the joint shell (202a), wherein a detection opening (202b-1) is provided in a central part of the joint ball (202b), and wherein the fastening rod (202c) is firmly connected to both sides of the joint ball (202b). [3] An anti-blocking detection device in a raw coal silo of a thermal power plant according to claim 2, characterized byin that the fastening rod (202c) comprises a round fastening rod (202c-1), a pivoting rod (202c-2) and a connecting rod (202c-3), wherein the round fastening rod (202c-1) penetrates the joint shell (202a) and is firmly connected to the two sides of the joint ball (202b), wherein the pivoting rod (202c-2) is firmly connected to an end of the round fastening rod (202c-1) facing away from the joint ball (202b), and wherein the connecting rod (202c-3) is firmly connected to an end of the pivoting rod (202c-2) facing away from the round fastening rod (202c-1). [4] An anti-blocking detection device in a raw coal silo of a thermal power plant according to claim 1 or 3, characterized bythat the fastening element (203) comprises a fastening disc (203a), a fastening block (203b), an elastic block (203c) and a first return spring (203d), wherein the fastening disc (203a) is firmly connected to the fastening shell (201), wherein a plurality of sliding grooves (203a-1) are provided in the fastening disc (203a), wherein the fastening block (203b) is arranged in the sliding groove (203a-1) and is slidably connected to the fastening disc (203a) by the sliding groove (203a-1), wherein a pressure bevel (203b-1) is provided at a rear end of the fastening block (203b), wherein the elastic block (203c) is arranged at a front end of the fastening block (203b), and wherein one end of the first return spring (203d) is firmly connected to the fastening block (203b) and the other end of the first return spring (203d) is firmly connected to the fixing disc (203a). [5] An anti-blocking detection device in a raw coal silo of a thermal power plant according to claim 4, characterized by that the fastening element (203) further comprises a flexible disk (203e), a pressure sheet (203f), a stop rod (203g), a fastening plate (203h) and a second return spring (203i), wherein the flexible disk (203e) is connected in a hinged manner to the fastening disk (203a), wherein the pressure sheet (203f) is fixedly connected to the flexible disk (203e), wherein the pressure sheet (203f) is fitted to the fastening block (203b) by the pressure bevel (203b-1), wherein the stop rod (203g) is fixedly connected to the flexible disk (203e), wherein the fastening plate (203h) is fixedly connected to the fastening disk (203a), and wherein one end of the second return spring (203i) is fixedly connected to the fastening plate (203h) and the other end of the second return spring (203i) is firmly connected to the stop rod (203g). [6] An anti-blocking detection device in a raw coal silo of a thermal power plant according to claim 5, characterized bythat the gear element (204) comprises a recessed pressure plate (204a), a sealing ring (204b), a third return spring (204c), a long fastening plate (204d), a connecting slide rod (204e), a long slide rod (204f), a stop block (204g) and a first compression spring (204h), wherein the recessed pressure plate (204a) is slidably connected to the fastening shell (201) and an end of the recessed pressure plate (204a) facing the joint ball (202b) is fitted to the detection opening (202b-1) of the joint ball (202b), wherein the sealing ring (204b) is firmly connected to an end of the recessed pressure plate (204a) facing away from the joint ball (202b), wherein one end of the third return spring (204c) is connected to the recessed pressure plate (204a) is firmly connected and the other end of the third return spring (204c) is firmly connected to the joint shell (202a), wherein the long fastening plate (204d) is firmly connected to the recessed pressure plate (204a),wherein the connecting slide rod (204e) is fixedly connected to one side of the long fastening plate (204d), wherein the long slide rod (204f) is slidably connected to the recessed pressure plate (204a) and the fastening disc (203a), wherein a short slide groove (204f-1) is provided in the long slide rod (204f), and the short slide groove (204f-1) is fitted to the connecting slide rod (204e), wherein the stop block (204g) is fixedly connected to an end of the long slide rod (204f) facing the joint disc (203e), and the stop block (204g) is fitted to the stop rod (203g), wherein the first compression spring (204h) is placed on the long slide rod (204f), and wherein one end of the first compression spring (204h) is fixedly connected to the stop block (204g), and the other end of the first compression spring (204h) is firmly connected to the fastening disc (203a). [7] An anti-blocking detection device in a raw coal silo of a thermal power plant according to claim 6, characterized by in that the long fastening plate (204d) comprises a sliding plate (204d-1) and a fastening rack (204d-2), wherein the sliding plate (204d-1) is fixedly connected to the recessed pressure plate (204a), wherein the fastening rack (204d-2) is arranged in an upper part of the sliding plate (204d-1), wherein an L-shaped groove (204d-3) is provided in a lower part of the sliding plate (204d-1), and wherein the L-shaped groove (204d-3) is fitted to the connecting rod (202c-3). [8] An anti-blocking detection device in a raw coal silo of a thermal power plant according to claim 1 or 7, characterized bythat the adjustment element (205) comprises a fastening support (205a), a toothed block (205b), a connecting sliding rod (205c), a grooved sliding block (205d) and a second compression spring (205e), wherein the fastening support (205a) is fixedly connected to the fastening shell (201), wherein the toothed block (205b) is arranged in the fastening support (205a) and is slidably connected to the fastening support (205a), wherein the toothed block (205b) is in engagement with the fastening rack (204d-2), wherein the connecting sliding rod (205c) is fixedly connected to the toothed block (205b) and the connecting sliding rod (205c) is slidably connected to the fastening support (205a), wherein the grooved sliding block (205d) is fixedly connected to the connecting sliding rod (205c) and an auxiliary sliding groove (205d-1) is provided in the grooved sliding block (205d),and wherein one end of the second compression spring (205e) is fixedly connected to the grooved sliding block (205d) and the other end of the second compression spring (205e) is fixedly connected to the mounting bracket (205a). [9] An anti-blocking detection device in a raw coal silo of a thermal power plant according to claim 8, characterized byin that the adjustment element (205) further comprises an auxiliary block (205f), a push rod (205g) and a third compression spring (205h), wherein the auxiliary block (205f) is slidably connected to the fastening bracket (205a) and the auxiliary block (205f) is fitted to the grooved sliding block (205d) through the auxiliary sliding groove (205d-1), wherein the push rod (205g) is slidably connected to the fastening shell (201) and the push rod (205g) is fixedly connected to the auxiliary block (205f), wherein the third compression spring (205h) is placed on the push rod (205g), and wherein one end of the third compression spring (205h) is fixedly connected to the fastening shell (201) and the other end of the third compression spring (205h) is fixedly connected to the push rod (205g). [10] An anti-blocking detection device in a raw coal silo of a thermal power plant according to claim 9, characterized bythat the storage device (101) further comprises a bidirectional slide valve (101d) between the raw coal silo (101a) and the hyperbolic discharge line (101c), a tuning fork coal flow meter (101e) on the hyperbolic discharge line (101c), a first gas cylinder (101f) on one side of the tuning fork coal flow meter (101e), a compressed air nozzle lance (101g) fixedly connected to the first gas cylinder (101t), and a protective sheath (101h) outside the tuning fork coal flow meter (101e) and the compressed air nozzle lance (101g).

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