Fire suppression system of crushing plant

Abstract

To provide a system which can resume operation quickly without stopping receipt of garbage even if a fire occurs in a crushing plant.SOLUTION: A fire suppression system of a crushing plant includes: a supply conveyor 1 which transports waste matters; a crusher 2 which crushes the waste matters transported by the supply conveyor 1; a crushed object discharge conveyor 4 which transports crushed objects crushed by the crusher 2; and a crushed object transport conveyor 5 which transports the crushed objects discharged from the crushed object discharge conveyor 4. The fire suppression system includes a first emergency shutdown damper 31 for shutting down transport of the crushed objects at the discharge side of the crusher 2 and includes a second emergency shutdown damper 32 for shutting down transport of the crushed objects at the discharge side of the crushed object discharge conveyor.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a fire suppression system, for example in a crushing and processing plant. [Background technology]

[0002] In recent years, there have been frequent fires caused by lithium-ion batteries at general waste crushing and processing plants. Depending on the extent of the damage, facilities and equipment may be severely damaged, leading to a long-term suspension of waste acceptance.

[0003] Various fire detectors (CO analyzers, thermometers such as thermocouples, combustible gas analyzers, etc.) and fire extinguishing water sprinklers (nozzles) linked to them are installed around the crusher or on the transport conveyor after the crusher, and when a fire is detected, all the equipment is stopped at once and at the same time, automatic fire extinguishing water is sprayed to extinguish and put out the fire. In addition, a reversing mechanism is installed on the transport conveyor, and in the event of a fire, the conveyor is reversed to remove the affected materials from the tail of the conveyor and fire extinguishing activities can be carried out.

[0004] Patent Document 1 discloses that after a fire detection sensor detects combustion, the conveyor device is caused to run for a certain time and / or a certain distance, and then the conveyor device is stopped. Patent Document 2 discloses a fire detection device for a refuse-derived fuel facility having a configuration in which a CO meter for measuring the CO concentration in the exhaust gas is installed in the exhaust gas line of the refuse dryer at the refuse-derived fuel facility. Patent Document 3 discloses a plastic waste treatment facility that crushes plastic waste and transports it to a specified location, in which an ignition detector is provided on the treatment line that crushes and transports the plastic waste, a sprinkler device is provided that sprinkles water on the treatment line when an ignition is detected by the ignition detector, and a discharge mechanism is further provided that discharges plastic waste within the treatment line out of the treatment line when an ignition is detected by the ignition detector.

[0005] Patent Document 4 discloses a waste crushing facility equipped with a fire prevention device, in which the fire prevention device is formed from a plurality of sprinkler nozzles provided within the casing of the crushed material transporting device, a sprinkler control valve for controlling the water supplied to the sprinkler nozzles, and a plurality of CO detectors provided within the casing of the crushed material transporting device for detecting the CO concentration in the internal atmosphere, and in which a fire detection signal from the CO detector automatically stops the crusher and activates the fire prevention device to extinguish the crushed material by sprinkling water on the crushed material. Patent document 5 discloses a fire prevention method for a waste treatment facility, in which the area around the fire prevention target in the waste treatment facility is shielded to prevent infrared rays from entering from the outside, and near-infrared rays generated by the fire prevention target before it ignites. Patent document 6 discloses an ignition detection system for a waste treatment facility equipped with a crusher for crushing waste, a first transport conveyor for transporting crushed waste discharged from the crusher, and a second transport conveyor for transporting crushed waste dropped from the first transport conveyor, the ignition detection system including an imaging means for imaging the crushed waste dropped from the first transport conveyor to the second transport conveyor, and an ignition phenomenon determination means for determining whether or not an ignition phenomenon has occurred based on the image captured by the imaging means. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent No. 6937210 [Patent Document 2] JP 2002-315843 A [Patent Document 3] JP 2007-191272 A [Patent Document 4] JP 2011-240295 A [Patent Document 5] JP 2014-113213 A [Patent Document 6] Patent Publication No. 2021-45723 Summary of the Invention [Problem to be solved by the invention]

[0007] The above-mentioned prior art documents have the following problems. (1) Because the conveyor is stopped, the position of the fire source and the fire sprinkler nozzle do not match, resulting in a time lag before the fire is extinguished. (2) Because the fire occurred inside a conveyor covered by a case, it was difficult for manual firefighting efforts to be carried out using fire hoses, etc. (3) Once a fire breaks out, it may spread over a wide area via the combustible residues contained in the crushed material to equipment downstream of the crusher. (4) Even if the crusher is stopped, it continues to rotate for a while, so the exhaust air generated by the rotating body (rotor or hammer) stirs the inside of the downstream conveyor, facilitating the spread of the fire. (5) After the fire is extinguished, a great deal of effort is required to remove and clean the crushed material remaining inside the aircraft or that has been discharged outside, and to treat the wastewater, making it difficult to quickly resume operations, even in the case of a small fire.

[0008] In view of the above problems, the present disclosure aims to provide a system that can quickly resume operations without disrupting the acceptance and processing of waste, even if a fire occurs at a crushing and processing plant. [Means for solving the problem]

[0009] The crushing and processing plant (A1, A2) of the present disclosure includes: A feed conveyor (1) for transporting waste; a crusher (2) for crushing the waste transported by the supply conveyor (1); a crushed material discharge conveyor (4) for transporting the crushed material crushed by the crusher (2); a crushed material transport conveyor (5) for transporting the crushed material discharged from the crushed material discharge conveyor (4); Equipped with.

[0010] The crushing and processing plant (A1, A2) a magnetic separator (6) that separates metals and non-metals from the crushed material transported by the crushed material transport conveyor (5) using magnetic force and changes the transport route to the subsequent stage; The apparatus may further include a sorting device for sorting non-combustible materials and combustible materials from the non-metallic crushed materials sorted by the magnetic separator (6).

[0011] The crushing and processing plant (A1, A2) At least one crusher temperature measuring device (91) that is installed at a connection point between the supply conveyor (1) and the crusher (2) or at the crusher (2) and measures the temperature of the material crushed by the crusher (2); At least one discharge conveyor temperature measuring device (92, 93) for measuring the temperature of the crushed material being transported by the crushed material discharge conveyor (4); At least one conveyor temperature measuring device (94) for measuring the temperature of the crushed material being conveyed by the crushed material conveyor (5); The device may include: The crusher temperature measuring device (91) may be provided at any position inside the case of the crusher (2). The discharge conveyor temperature measuring devices (92, 93) may be provided at any position within the case of the crushed material discharge conveyor (4). The transport conveyor temperature measuring device (94) may be provided at any position within the case of the crushed material transport conveyor (5).

[0012] The crushing and processing plant (A1, A2) The crushed material discharge conveyor (4) may be provided with at least one gas analyzer (8) disposed at any position within the case thereof. The gas analyzer (8) may be, for example, one or more of a carbon monoxide analyzer, a combustible gas analyzer, and the like.

[0013] The crushing and processing plant (A1, A2) It may also be equipped with a fire detector (e.g., any gas, smoke, etc.) installed at any position within the case of the crushed material discharge conveyor (4) and / or at any position within the case of the crushed material transport conveyor (5).

[0014] The crushing and processing plant (A1, A2) At least one discharge conveyor fire extinguishing water sprinkler device (101, 102, 103) for sprinkling water toward the crushed material being transported by the crushed material discharge conveyor (4); At least one transport conveyor fire extinguishing water sprinkler device (104) for sprinkling water toward the crushed material being transported by the crushed material transport conveyor (5); The device may include:

[0015] The fire suppression system (B1) of the crushing and processing plant (A1, A2) comprises: a first emergency shutoff damper (31) for shutting off the transport of the crushed material at the discharge side of the crusher (2) or before the crushed material enters the case of the crushed material discharge conveyor (4); a second emergency shutoff damper (32) for shutting off the transport of the crushed material at the discharge side of the crushed material discharge conveyor (4) or before the crushed material enters the case of the crushed material transport conveyor (5); The device may include:

[0016] The fire suppression system (B1, B2) a first emergency discharge container (71) provided at a position where the crushed material is discharged from the upstream of the crushed material discharge conveyor (4); a second emergency discharge container (72) provided at a position where the crushed material is discharged from the upstream of the crushed material transport conveyor (5); At least one first fire extinguishing water sprinkler device (111) for sprinkling water toward the crushed material in the first emergency discharge container (71); At least one second fire extinguishing water sprinkler device (112) for sprinkling water toward the crushed material in the second emergency discharge container (72); The device may include:

[0017] The fire suppression system (B1, B2) Crusher temperature measurement data measured by the crusher temperature measuring device (91); Discharge conveyor temperature measurement data measured by the discharge conveyor temperature measuring device (92, 93); and a shutoff damper control unit (301) that controls the first emergency shutoff damper (31) and / or the second emergency shutoff damper (32) to change from open to closed when one or more types of temperature data among the conveyor temperature measurement data measured by the conveyor temperature measuring device (94) reach or exceed a predetermined temperature; The device may include: The shutoff damper control section (301) When the analysis data of the gas analyzer (8) reaches or exceeds a predetermined value, the first emergency shutoff damper (31) and / or the second emergency shutoff damper (32) may be controlled to change from open to closed.

[0018] The fire suppression system (B1, B2) Crusher temperature measurement data measured by the crusher temperature measuring device (91); Discharge conveyor temperature measurement data measured by the discharge conveyor temperature measuring device (92, 93); and When one or more of the temperature data measured by the conveyor temperature measuring device (94) and the conveyor temperature measurement data are equal to or higher than a predetermined temperature, Stopping the crusher (2), and / or a stop control unit (302) for switching the crushed material discharge conveyor (4) and / or the crushed material transport conveyor (5) from forward transport to reverse transport; The device may include: The stop control unit (302) When the analysis data of the gas analyzer (8) reaches a predetermined value, the crusher (2) is stopped, and / or The crushed material discharge conveyor (4) and / or the crushed material transport conveyor (5) may be switched from forward transport to reverse transport. The stop control unit (302) The start and end of water discharge by the first fire sprinkler system (111) and / or the second fire sprinkler system (112) may be controlled.

[0019] The fire suppression system (B1, B2) Crusher temperature measurement data measured by the crusher temperature measuring device (91); Discharge conveyor temperature measurement data measured by the discharge conveyor temperature measuring device (92, 93); and When one or more of the temperature data measured by the conveyor temperature measuring device (94) and the conveyor temperature measurement data are equal to or higher than a predetermined temperature, a water discharge control unit (303) for controlling the discharge conveyor fire extinguishing water discharge device (101, 102, 103) and / or the transfer conveyor fire extinguishing water discharge device (104) (start and end); The device may include: The water discharge control unit (303) When the analysis data of the gas analyzer (8) reaches a predetermined value, water discharge from the discharge conveyor fire extinguishing sprinkler system (101, 102, 103) and / or the transfer conveyor fire extinguishing sprinkler system (104) may be controlled.

[0020] The fire suppression system (B2) At least one discharge conveyor non-combustible material emergency input device (121) for inputting non-combustible material toward the crushed material being transported by the crushed material discharge conveyor (4); At least one conveyor non-combustible material emergency input device (122) for inputting non-combustible material toward the crushed material being conveyed by the crushed material conveyor (5); The device may include:

[0021] The discharge conveyor non-combustible emergency input device (121) and the transport conveyor non-combustible emergency input device (122) are A main body (12a) for storing non-combustible materials; and a non-combustible emergency discharge gate (12c) for introducing the non-combustible materials downward.

[0022] The fire suppression system (B2) Crusher temperature measurement data measured by the crusher temperature measuring device (91); Discharge conveyor temperature measurement data measured by the discharge conveyor temperature measuring device (92, 93); and When one or more of the temperature data measured by the conveyor temperature measuring device (94) and the conveyor temperature measurement data are equal to or higher than a predetermined temperature, The system may further include an incombustible waste input control unit (305) for controlling the incombustible waste emergency discharge gate (12c) from closed to open. The non-combustible material input control unit (305) When the analysis data of the gas analyzer (8) reaches or exceeds a predetermined value, the non-combustible emergency discharge gate (12c) may be controlled to change from closed to open.

[0023] (effect) (1) The emergency shutoff damper can suppress air inflow caused by coasting after the crusher is stopped, thereby preventing the spread of fire. (2) By discharging the fire materials into the emergency discharge container, the fire area is concentrated in the same container, which helps prevent the fire from spreading. In addition, the fire extinguishing area is limited, making it easier and more reliable to extinguish the fire. (3) Since the fire extinguishing range is limited, the amount of water sprayed for fire extinguishing is expected to be reduced, which will lead to a reduction in the burden on wastewater treatment. (4) Since the fire extinguishing nozzles are positioned intermittently, there are gaps in the nozzles. However, by reversing the conveyor instead of stopping it, these gaps in the nozzles can be eliminated. (5) After the fire is extinguished, a considerable amount of work and time is required to clean up the crushed material (fire residue) remaining inside the plant and to dispose of the water discharged from the fire extinguishing water supply. However, by installing an emergency discharge container, this workload can be reduced and plant operations can be resumed quickly. (6) As the emergency filler for preventing the spread of fire can be made from incombustible waste generated at the waste crushing and processing plant, there is no need to obtain filler from outside. In addition, after the fire is extinguished, no special disposal is required and the plant can continue to operate as is. [Brief description of the drawings]

[0024] [Figure 1] FIG. 1 is a diagram showing a fire suppression system of a crushing and processing plant according to a first embodiment. [Diagram 2] FIG. 11 is a diagram showing a fire suppression system of a crushing plant according to a second embodiment. [Diagram 3] FIG. 1 is a diagram showing an example of the structure of an emergency discharge container. [Figure 4] FIG. 2 is a diagram showing an example of the structure of an emergency non-combustible material insertion device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0025] Several embodiments of the present invention will be described below. The embodiments described below are merely examples of the present invention. The present invention is not limited to the following embodiments, and includes various modified forms that are implemented within the scope of the present invention.

[0026] (Embodiment 1) The fire suppression system B1 of the crushing plant A1 is shown in Fig. 1. First, the basic configuration of the crushing plant A1 will be described. The crushing processing plant A1 comprises a supply conveyor 1 for transporting waste, a crusher 2 for crushing the waste transported by the supply conveyor 1, a crushed material discharge conveyor 4 for transporting the crushed material crushed by the crusher 2, and a crushed material transport conveyor 5 for transporting the crushed material discharged from the crushed material discharge conveyor 4. The crushing plant A1 also includes a magnetic separator 6 that uses magnetic force to separate metals and non-metals from the crushed materials transported by the crushed material transport conveyor 5, and changes the transport route to the subsequent stage. Note that a separator (not shown) may also be provided at the subsequent stage to separate non-combustible materials and combustible materials from the non-metallic crushed materials separated by the magnetic separator 6.

[0027] The crusher temperature measuring device 91 is installed in the crusher 2. The crusher temperature measuring device 91 measures the temperature of the material crushed by the crusher 2 and the atmospheric temperature inside the crusher. Temperature measuring devices 92, 93 are installed at two locations, upstream and downstream, in the transport direction of the crushed material discharge conveyor 4. The temperature measuring devices 92, 93 measure the temperature of the crushed materials being transported by the crushed material discharge conveyor 4 and the atmospheric temperature inside the conveyor case. The temperature measuring device 94 is disposed at an arbitrary position on the crushed material transport conveyor 5. In this embodiment, the temperature measuring device 94 is installed upstream of the intermediate position in the transport direction. The temperature measuring device 94 measures the temperature of the crushed materials being transported on the crushed material transport conveyor 5 and the atmospheric temperature inside the conveyor case.

[0028] The gas analyzer 8 is installed at an arbitrary position inside the case on the upstream side of the crushed material discharge conveyor 4. The gas analyzer 8 analyzes the concentration of carbon monoxide or combustible gas inside the conveyor case.

[0029] Fire extinguishing sprinkler devices 101, 102, and 103 are installed at three locations, upstream, in the middle, and downstream, of the crushed material discharge conveyor 4. The fire extinguishing sprinkler devices 101, 102, and 103 sprinkle water toward the crushed materials being transported on the crushed material discharge conveyor 4. A fire extinguishing sprinkler system 104 is installed in the middle of the crushed material transport conveyor 5. The fire extinguishing sprinkler system 104 sprinkles water toward the crushed materials being transported by the crushed material transport conveyor 5.

[0030] Next, the fire suppression system B1 will be described. The first emergency shutoff damper 31 is provided at an opening leading from the discharge side of the crusher 2 to the inside of the case of the crushed material discharge conveyor 4. The first emergency shutoff damper 31 has a damper structure that shuts off the falling or inclined transport of the crushed material. The second emergency shutoff damper 32 is provided at an opening leading from the case discharge side of the crushed material discharge conveyor 4 to the inside of the case of the crushed material transport conveyor 5. The second emergency shutoff damper 32 has a damper structure that shuts off the falling transport or inclined transport of the crushed materials.

[0031] The first emergency discharge container 71 is provided at a position where the crushed material is discharged from the upstream of the crushed material discharge conveyor 4. The first fire extinguishing sprinkler device 111 sprinkles water toward the material to be crushed in the first emergency discharge container 71 .

[0032] The second emergency discharge container 72 is provided at a position where the crushed material is discharged from the upstream of the crushed material transport conveyor 5. The second fire extinguishing sprinkler device 112 sprinkles water toward the crushed material in the second emergency discharge container 72.

[0033] Figure 3 shows an example of the structure of an emergency discharge container. The capacity of the first and second emergency discharge containers 71, 72 is set to a size that matches the amount of crushed material remaining on the crushed material discharge conveyor 4 or the crushed material transport conveyor 5. For example, if the conveyor length is 20 m, the effective transport width is 0.5 m, and the average transport layer thickness is 0.1 m, then 20 x 0.5 x 0.1 = 1 m. 3 This gives a distance of about 1m. 3 All you need to do is prepare a container for the above. The first and second emergency discharge containers 71, 72 are provided with forklift claw insertion ports 7a, and are structured so that the crushed materials (fire residues) collected in the containers can be easily transported with a forklift to a temporary storage area, etc., enabling operations to be resumed quickly. Furthermore, the first and second emergency discharge containers 71, 72 are provided with drains 7b, so that wastewater can be appropriately disposed of at the permanent location or at the transfer destination.

[0034] The shutoff damper control unit 301 controls the first emergency shutoff damper 31 and the second emergency shutoff damper 32 to change from open to closed when one or more types of temperature data selected from the crusher temperature measurement data measured by the crusher temperature measuring device 91, the discharge conveyor temperature measurement data measured by the temperature measuring devices 92 and 93, and the transport conveyor temperature measurement data measured by the temperature measuring device 94 reaches or exceeds a predetermined temperature. Furthermore, the shutoff damper control unit 301 may control the first emergency shutoff damper 31 and the second emergency shutoff damper 32 to change from open to closed when the analysis data from the gas analyzer 8 reaches or exceeds a predetermined value.

[0035] The stop control unit 302 stops the crusher 2 and controls the crushed material discharge conveyor 4 and the crushed material conveyor 5 to switch from forward conveyance to reverse conveyance when one or more types of temperature data among the crusher temperature measurement data measured by the crusher temperature measuring device 91, the discharge conveyor temperature measurement data measured by the temperature measuring device 92, 93, and the conveyor temperature measurement data measured by the temperature measuring device 94 reaches a predetermined temperature or higher. In addition, the stop control unit 302 may stop the crusher 2 and control the crushed material discharge conveyor 4 and the crushed material transport conveyor 5 to switch from forward transport to reverse transport when the analysis data of the gas analyzer 8 reaches or exceeds a predetermined value. In addition, the stop control unit 302 controls the start and end of water discharge by the first fire extinguishing sprinkler system 111 and the second fire extinguishing sprinkler system 112.

[0036] The water discharge control unit 303 controls the start and end of water discharge by the discharge conveyor fire extinguishing water sprinklers 101, 102, 103 and the transport conveyor fire extinguishing water sprinkler device 104 when one or more types of temperature data among the crusher temperature measurement data measured by the crusher temperature measuring device 91, the discharge conveyor temperature measurement data measured by the temperature measuring device 92, 93, and the transport conveyor temperature measurement data measured by the temperature measuring device 94 reaches a predetermined temperature or higher. The water discharge control unit 303 may control water discharge by the discharge conveyor fire extinguishing water sprinklers 101, 102, 103 and the transport conveyor fire extinguishing water sprinkler 104 when the analysis data of the gas analyzer 8 reaches or exceeds a predetermined value.

[0037] (Example of operation flow) (S1) In normal operation, the material to be processed is fed onto the supply conveyor 1, crushed in the crusher 2, and then transported via the crushed material discharge conveyor 4 and the crushed material transport conveyor 5 to the sorting equipment including the magnetic separator 6 and subsequent equipment. If dangerous materials such as lithium ion batteries (hereinafter referred to as LiBs) are mixed in with the materials to be treated, the crushing process may cause them to generate heat and, in the worst case, catch fire.

[0038] (S2) In the event of a fire, the fire is detected by the crusher temperature measuring device 91, the temperature measuring devices 92 and 93, the temperature measuring device 94, the gas analyzer 8, etc. Upon detection of the fire, the stop control unit 302 simultaneously stops the equipment such as the crusher 2, the conveyors 4 and 5, the sorter 6, etc. Furthermore, the water discharge control unit 303 starts automatic water sprinkling by the fire extinguishing sprinklers 101, 102, 103 and the fire extinguishing sprinkler 104.

[0039] (S3) The shutoff damper control unit 301 issues a command to close the dampers, and closes the first and second emergency shutoff dampers 31, 32 to prevent the spread of fire due to air inflow. The stop control unit 302 also issues a command for reverse transport, reversing the transport direction of the crushed material discharge conveyor 4 and the crushed material transport conveyor 5. As a result, the crushed materials remaining on the conveyors are sent together with the fire source into the first and second emergency discharge containers 71 and 72, where they are discharged.

[0040] (S4) The stop control unit 302 issues a fire extinguishing command, and the first and second fire sprinkler devices 111, 112 installed in the first and second emergency discharge containers 71, 72 automatically sprinkle fire extinguishing water on the remaining materials discharged into the containers.

[0041] (S5) The sprinkling time of the first and second fire sprinklers 111 and 112 is controlled to be linked with the conveyor reversal (start reverse rotation→start sprinkling→stop reverse rotation of the conveyor→stop sprinkling), so as to prevent the water after sprinkling from diffusing and dissipating to the surroundings. Fire sprinklers 101, 102, 103 and fire sprinkler 104 can also be linked with the conveyor reversal (start reverse rotation→start sprinkling→stop reverse rotation of the conveyor→stop sprinkling).

[0042] (Embodiment 2) The crushing plant A2 of the second embodiment has the same configuration as the crushing plant A1 of the first embodiment, and the same reference numerals have the same functions, so the description will be omitted.

[0043] The fire suppression system B2 is equipped with an emergency non-combustible material insertion device. The first non-combustible material emergency input device 121 is provided at approximately the middle position of the crushed material discharge conveyor 4. The first non-combustible material emergency input device 121 inputs non-combustible material toward the material to be crushed that is being transported by the crushed material discharge conveyor 4. The second non-combustible material emergency input device 122 is provided downstream of the intermediate position of the crushed material transport conveyor 5. The second non-combustible material emergency input device 122 inputs non-combustible material toward the material to be crushed being transported by the crushed material transport conveyor 5.

[0044] Examples of non-combustible materials include soil and sand, concrete fragments, ceramic fragments, and non-combustible materials separated in a downstream sorting device.

[0045] Figure 4 shows an example of the structure of an emergency non-combustible material insertion device. The first and second emergency noncombustible material input devices 121, 122 each include a main body 12a for storing noncombustible material, an emergency noncombustible material discharge gate 12c for inputting the noncombustible material downward, and an opening 12b for putting the noncombustible material into the main body 12a.

[0046] The non-combustible waste introduction control unit 305 controls the non-combustible waste emergency discharge gate 12c from closed to open when one or more types of temperature data among the crusher temperature measurement data measured by the crusher temperature measurement device 91, the discharge conveyor temperature measurement data measured by the temperature measurement devices 92 and 93, and the transport conveyor temperature measurement data measured by the temperature measurement device 94, reach a predetermined temperature or higher. This allows the non-combustible waste to be urgently dropped into the case. The noncombustible material introduction control unit 305 may control the noncombustible material emergency discharge gate 12c from closed to open when the analysis data of the gas analyzer 8 reaches or exceeds a predetermined value.

[0047] In the second embodiment, a non-combustible material emergency insertion method is used instead of an emergency shutoff damper as a means to prevent the spread of fire. The non-combustible material emergency insertion device can be installed anywhere, even at the midpoint of the conveyor. In addition, it can reliably cover the transported material regardless of its condition.

[0048] The capacity of the non-combustible emergency input devices 121, 122 may be about 200 L. For example, if the conveyor belt to be installed is a finned type with an effective width of 0.5 m, a fin height of 0.2 m, and a fin pitch of 0.5 m, one block will have a capacity of about 50 L, and 200 L will be enough to ensure coverage. An incombustible material inlet 12b is provided at the top of the incombustible material emergency input devices 121, 122 for charging crushed incombustible material generated from an emergency input facility.

[0049] (Operation flow) (S10) If a fire occurs, the fire is detected by the crusher temperature measuring device 91, the temperature measuring devices 92 and 93, the temperature measuring device 94, the gas analyzer 8, etc. Upon detection of the fire, the stop control unit 302 stops the crusher 2. Furthermore, the water discharge control unit 303 starts automatic water sprinkling by the fire extinguishing sprinklers 101, 103 and the fire extinguishing sprinkler 104.

[0050] (S11) The non-combustible material input control unit 305 controls the non-combustible material emergency discharge gate 12c from closed to open upon detection of a fire. This causes the non-combustible material to be urgently dropped into the case. The conveyors 4 and 5 perform forward transport. The input time can be linked to the conveyor transport time.

[0051] In the third embodiment, an emergency shutoff damper and an emergency incombustible material input are provided together. In other words, if a fire occurs, the crusher 2, the conveyors 4 and 5, the sorter 6, and other equipment are all stopped at once, similar to the first embodiment. Automatic sprinkling of water is started by the fire extinguishing sprinklers 101, 102, 103 and the fire extinguishing sprinkler 104. In addition, the non-combustible material introduction control unit 305 urgently drops non-combustible materials into the case. The first and second emergency shutoff dampers 31, 32 are closed to prevent the spread of fire due to air inflow. The conveying directions of the crushed material discharge conveyor 4 and the crushed material transport conveyor 5 are reversed, so that the crushed material remaining on the conveyors is sent to the first and second emergency discharge containers 71, 72 together with the fire source. The remaining materials discharged into the first and second emergency discharge containers 71, 72 are automatically extinguished by the first and second fire sprinkler devices 111, 112 installed in the containers.

[0052] The shutoff damper control unit 301, the stop control unit 302, the water discharge control unit 303, and the non-combustible material injection control unit 305 may be realized in cooperation with one or more processors, memories, and programs that indicate procedures, or may be realized by one or more types of dedicated circuits, PLCs (Programmable Logic Controllers), computers, etc.

[0053] (Another embodiment) The emergency discharge container can be moved by a forklift, but in another embodiment, it may be configured as a container equipped with a lifting type portable structure. [Explanation of symbols]

[0054] A1, A2 Crushing and Processing Plant B1, B2 Fire Suppression Systems 31 First emergency shutoff damper 32 Second emergency shutoff damper 121 First nonflammable material emergency loading device 122 Second non-combustible material emergency loading device 301 Shut-off damper control section 302 Stop control section 303 Water discharge control section 305 Non-combustible material input control unit

Claims

1. A fire suppression system for a crushing and processing plant, comprising: a supply conveyor for transporting waste; a crusher for crushing and processing the waste transported by the supply conveyor; a crushed material discharge conveyor for transporting the crushed material crushed by the crusher; and a crushed material transport conveyor for transporting the crushed material discharged from the crushed material discharge conveyor, a first emergency shutoff damper for shutting off the transport of the crushed material on the discharge side of the crusher; a second emergency shutoff damper for shutting off the transport of the crushed material on the discharge side of the crushed material discharge conveyor; Equipped with Fire suppression systems.

2. A first emergency discharge container provided at a position where the crushed material is discharged from the upstream of the crushed material discharge conveyor; and a second emergency discharge container provided at a position where the crushed material is discharged from the upstream of the crushed material transport conveyor.

2. The fire suppression system of claim 1.

3. At least one first fire extinguishing water sprinkler device that sprinkles water toward the crushed material in the first emergency discharge container; At least one second fire extinguishing water sprinkler device that sprinkles water toward the crushed material in the second emergency discharge container; 3. The fire suppression system of claim 2.

4. Crusher temperature measurement data measured by the crusher temperature measuring device; Discharge conveyor temperature measurement data measured by the discharge conveyor temperature measuring device; and a shutoff damper control unit that controls the first emergency shutoff damper and / or the second emergency shutoff damper to change from open to closed when one or more types of temperature data among the conveyor temperature measurement data measured by the conveyor temperature measuring device become equal to or higher than a predetermined temperature; Equipped with 2. The fire suppression system of claim 1.

5. Crusher temperature measurement data measured by a crusher temperature measuring device; Discharge conveyor temperature measurement data measured by a discharge conveyor temperature measuring device; and When one or more of the temperature data measured by the conveyor temperature measuring device is equal to or higher than a predetermined temperature, Stopping the crusher, and / or A stop control unit that switches the crushed material discharge conveyor and / or the crushed material transport conveyor from forward transport to reverse transport; Equipped with 2. The fire suppression system of claim 1.

6. A fire suppression system for a crushing and processing plant, comprising: a supply conveyor for transporting waste; a crusher for crushing and processing the waste transported by the supply conveyor; a crushed material discharge conveyor for transporting the crushed material crushed by the crusher; and a crushed material transport conveyor for transporting the crushed material discharged from the crushed material discharge conveyor, At least one discharge conveyor non-combustible material emergency input device for inputting non-combustible material toward the crushed material being transported by the crushed material discharge conveyor; At least one conveyor non-combustible material emergency input device for inputting non-combustible material toward the crushed material being conveyed by the crushed material conveyor; Equipped with Fire suppression systems.

7. The discharge conveyor non-combustible material emergency input device and the transport conveyor non-combustible material emergency input device are A main body for storing non-combustible materials; a non-combustible material emergency discharge gate for introducing the non-combustible material downward, The fire suppression system comprises: Crusher temperature measurement data measured by a crusher temperature measuring device; Discharge conveyor temperature measurement data measured by a discharge conveyor temperature measuring device; and When one or more of the temperature data measured by the conveyor temperature measuring device and the conveyor temperature measurement data are equal to or higher than a predetermined temperature, A non-combustible material input control unit is provided for controlling the non-combustible material emergency discharge gate from closed to open.

7. The fire suppression system of claim 6.

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