Blanking, cooling and conveying device of slag cooler

Abstract

A discharging cooling conveying device of a slag cooler comprises a belt conveyor and a spraying mechanism. The belt conveyor comprises a rack, a belt wheel, a belt and a supporting roller. The spraying mechanism comprises a spraying main pipe, a spraying branch pipe and a spraying output pipe. The supporting roller comprises an upper supporting roller, and the upper supporting roller is attached to the lower surface of the upper belt; the upper supporting roller comprises a middle roller and two edge rollers located on the two sides of the middle roller respectively, and the two edge rollers are both arranged in an upwards-inclined mode and used for enabling the two sides of the upper belt to be turned upwards. The number of the spraying output pipes is three, and the three spraying output pipes are respectively opposite to the middle roller and the two edge rollers in the vertical direction. According to the discharging, cooling and conveying device for the slag cooler, through the structural design of the supporting rollers on the belt conveyor, the two sides of the belt are turned upwards, slag sent out by the slag cooler is gathered on the belt, it is avoided that the slag is spread on the belt, red slag in the slag is exposed and makes contact with the belt, the high-temperature red slag is prevented from scalding the belt, and the service life of the belt is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the boiler bottom slag processing technical field especially relates to a cold slag machine unloading cooling conveying device. BACKGROUND

[0002] As one of the key equipment of the boiler system, the cold slag machine is mainly used for processing the high-temperature slag generated after the boiler combustion. The traditional slag processing process is: the high-temperature slag discharged by the boiler first enters the cold slag machine for preliminary cooling, and then is transferred to the slag warehouse or the designated stacking area through the conveying equipment. At present, the conveying equipment after the cold slag machine often adopts the chain bucket conveyor, which has the advantages of good sealing performance, high temperature resistance, etc., but in actual application, the chain bucket conveyor has the disadvantages of high cost and limited conveying distance.

[0003] The belt conveyor has the advantages of low cost and long conveying distance, and can solve the problem of the chain bucket conveyor in actual application. However, due to the unstable working condition of the cold slag machine and other reasons, the temperature of the discharged slag is still high, and even the red slag with extremely high temperature may be mixed in the slag, which exceeds the temperature resistance limit of the belt conveyor. When the slag with high temperature falls on the belt, it is easy to cause the belt to burn out, resulting in direct and indirect economic losses.

[0004] In order to solve the problem that the belt conveyor is easy to burn out due to high temperature of the slag in actual application, the prior art proposes a kind of "boiler slag cooling conveying device" (CN207094643U), which sets a distribution plate between the slag discharge port of the cold slag machine and the belt conveyor, and combines a spraying system for cooling, but its design has obvious defects. First, the installation of the distribution plate causes a large height difference between the belt conveyor and the outlet of the cold slag machine, which increases the vertical space occupation of the system and limits the application of the equipment in the space limited area. Secondly, the distribution plate exposes the red slag originally wrapped inside the slag during the process of scattering the slag. Although these red slags are cooled to a certain extent under the action of spraying, their core temperature is still as high as 400-600 DEG C. The red slag then falls quickly along the distribution plate to the belt, and the high temperature directly acts on the surface of the belt, accelerating the aging and damage of the belt. UTILITY MODEL CONTENTS

[0005] The utility model aims to solve at least one of the technical problems in the related art to some extent.

[0006] Therefore, according to the embodiments of the present disclosure, a cold slag machine unloading cooling conveying device is provided, which comprises:

[0007] The belt conveyor is arranged below the slag discharge pipe of the cold slag machine, and the belt conveyor comprises:

[0008] The machine frame comprises:

[0009] wheels, two, respectively arranged at two ends of the frame;

[0010] belt, arranged between the two wheels;

[0011] support rollers, arranged on the frame and attached to the lower surface of the belt;

[0012] spraying mechanism, arranged above the belt conveyor; the spraying mechanism comprises:

[0013] spraying main pipe, arranged along the conveying direction of the belt conveyor; the spraying main pipe is used for connecting a water supply device;

[0014] spraying branch pipe, connected to the spraying main pipe and perpendicular to the spraying main pipe;

[0015] spraying output pipe, connected to the spraying branch pipe and provided with a nozzle;

[0016] wherein the support rollers comprise upper support rollers attached to the lower surface of the upper belt; the upper support rollers are perpendicular to the conveying direction of the belt conveyor; the upper support rollers comprise a middle roller and two edge rollers respectively located on the two sides of the middle roller; the two edge rollers are both arranged upwardly inclined, so as to make the upper belt on the two sides upwardly inclined; the spraying output pipe has three, and the three spraying output pipes are vertically opposite to the middle roller and the two edge rollers respectively.

[0017] In the technical scheme, the combination of the belt conveyor and the spraying mechanism solves the problems of high cost and limited conveying distance of the traditional chain bucket conveyor, and effectively reduces the slag temperature through the spraying system, so as to protect the belt conveyor from high temperature damage; the structure design of the upper support rollers of the belt conveyor makes the two sides of the belt upwardly inclined, so as to gather the slag discharged by the slag cooler on the belt, avoid the red slag inside the slag spread on the belt and contact the belt, avoid the high-temperature red slag scalding the belt, and ensure the service life of the belt; on the other hand, the structure design makes the belt conveyor be able to be installed close to the slag cooler, reduces the space occupation in the vertical direction, and makes the belt conveyor be able to be used in the space-limited occasions.

[0018] In some embodiments, the two edge rollers are symmetrically arranged.

[0019] In the technical scheme, the structure design ensures that the two sides of the belt are inclined by the same degree, the slag on the two sides of the belt can be gathered to the middle by the same degree, the slag is arranged in the middle of the belt, the stability of the belt during slag conveying is improved, the belt is prevented from being unbalanced and coming off the wheels or the support rollers due to the gravity center of the slag being deviated to one side; on the other hand, through the symmetric design, the slag can be uniformly distributed, and the wear of the belt caused by uneven stress is reduced.

[0020] In some embodiments, the supporting roller further comprises a lower supporting roller, which is attached to the lower surface of the lower portion of the belt.

[0021] In the technical scheme, the lower supporting roller effectively supports the lower portion of the belt, prevents the belt from sagging due to gravity, avoids poor conveying caused by sagging of the belt, and prolongs the service life of the belt.

[0022] In some embodiments, the spraying mechanism further comprises:

[0023] a contact temperature sensor, which is arranged in the slag tapping pipe;

[0024] a spraying electromagnetic valve, which is arranged on the spraying branch pipe;

[0025] a spraying controller, which is electrically connected with the contact temperature sensor, measures the temperature of the slag in the slag tapping pipe, and is electrically connected with the spraying electromagnetic valve to control the on-off of the spraying branch pipe.

[0026] In the technical scheme, the contact temperature sensor can monitor the temperature of the slag in the slag tapping pipe of the slag granulator in real time, the spraying controller controls the on-off of the spraying electromagnetic valve according to the temperature information, and the spraying is started when the temperature exceeds the set value through real-time monitoring and control, which not only effectively prevents the belt from being damaged due to high temperature and prolongs the service life of the belt, but also avoids unnecessary waste of water resources and reduces the operation cost of the equipment.

[0027] In some embodiments, the spraying mechanism further comprises:

[0028] an infrared temperature measuring instrument, which is aligned with the upper portion of the belt from top to bottom and is electrically connected with the spraying controller to enable the spraying controller to measure the temperature of the slag on the belt.

[0029] In the technical scheme, the infrared temperature measuring instrument can quickly detect the high-temperature red slag inside the slag on the belt, and forms a complement to the contact temperature sensor, ensuring comprehensive monitoring of the temperature of the slag and timely starting of the spraying system for cooling to avoid scalding of the belt.

[0030] In some embodiments, the infrared temperature measuring instrument is arranged above the edge roller.

[0031] In the technical scheme, the infrared temperature measuring instrument is arranged above the edge roller, so that the infrared temperature measuring instrument can be obliquely aligned with the slag on the belt, the internal temperature of the slag is detected at multiple angles, the accuracy of temperature measurement is improved, and the spraying system can quickly respond to targeted cooling of the high-temperature area.

[0032] In some embodiments, the spray output pipes are all perpendicular to the spray branch pipes, and the nozzles are arranged along the spray output pipes;

[0033] The nozzles are all arranged along the radial direction of the spray output pipes and are staggered on both sides of the axis of the spray output pipes.

[0034] In the technical solution, the nozzles are arranged along the radial direction of the spray output pipes and are staggered, which ensures that the spraying area is maximized, covers the entire surface of the belt and the slag, realizes uniform cooling, and avoids that the local temperature of the slag is too high to scald the belt.

[0035] In some embodiments, the included angle between adjacent nozzles on the same spray output pipe is 25° to 35°.

[0036] In the technical solution, the structure design ensures that the distribution of the spray flow is more uniform, and avoids local insufficient or excessive spraying.

[0037] In some embodiments, the spray output pipes are arranged on one side of the slag discharge pipe, so that the spray output pipes are located above the dropping point of the slag discharged from the slag discharge pipe on the belt conveyor.

[0038] In the technical solution, the structure design ensures that the spray water can directly act on the slag just separated from the slag discharge pipe, ensures that the spraying system can cool down at the first time when the slag enters the belt conveyor, quickly reduces the temperature of the slag, and protects the belt; on the other hand, the spray water is prevented from falling on the surface of the belt in advance, the slag is ensured to contact the dry surface of the belt, the belt is prevented from being soaked or the slag from slipping on the belt, and the service life of the belt and the conveying efficiency of the slag are ensured.

[0039] In some embodiments, the spray branch pipes are connected to the ends of the spray output pipes away from the slag discharge pipe.

[0040] In the technical solution, the structure design avoids that the arrangement of the spray branch pipes separates the spray output pipes from the slag discharge pipe too much, ensures that the spray output pipes are adjacent to the slag discharge pipe to the maximum extent, and ensures accurate spraying on the dropping point.

[0041] The additional aspects and advantages of the present application will be partially given in the following description, some will become apparent from the following description, or will be understood by those skilled in the art through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0042] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, and the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0043] Figure 1 It is the structure schematic view of the cold slag machine blanking cooling conveying device of the utility model;

[0044] Figure 2 It is the longitudinal section structure view of the cold slag machine blanking cooling conveying device of the utility model;

[0045] Figure 3 It is the plan structure view of the spraying mechanism in the cold slag machine blanking cooling conveying device of the utility model;

[0046] Figure 4 It is the bottom structure view of the spraying branch pipe and the spraying output pipe part in the spraying mechanism of the cold slag machine blanking cooling conveying device of the utility model;

[0047] Figure 5 It is the section structure view of the spraying output pipe in the spraying mechanism of the cold slag machine blanking cooling conveying device of the utility model.

[0048] In the drawing,

[0049] 1, belt conveyor;101, rack;102, pulley;103, belt;104, support roller;1041, upper support roller;1041-1, intermediate roller;1041-2, edge roller;1042, lower support roller;

[0050] 2, spraying mechanism;201, spraying main pipe;202, spraying branch pipe;203, spraying output pipe;204, nozzle;205, contact type temperature sensor;206, spraying electromagnetic valve;207, infrared temperature measuring instrument;

[0051] 3, cold slag machine;301, slag outlet pipe. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0053] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship based on the drawing shown, and is only for the convenience of describing the utility model and simplifying the description, and is not indicative or implied that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0054] The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature.

[0055] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0056] like Figures 1 to 5 As shown in the schematic embodiment of the slag cooler feeding and cooling conveying device of this utility model, the slag cooler feeding and cooling conveying device includes a belt conveyor 1 and a spraying mechanism 2.

[0057] The slag cooler 3 has rollers. Slag enters the rollers, and coolant pipes are installed inside the roller walls. The rotation of the rollers causes the slag to tumble and agitate, ensuring full contact between the slag and the inner wall of the rollers. This transfers heat from the slag to the coolant in the cooling pipes. Driven by a circulating pump, the coolant exits the rollers, carrying away the heat and cooling the slag. The rollers of the slag cooler 3 have a slag inlet and a slag outlet at both ends. A slag outlet pipe 301 installed on the slag cooler 3 is connected to the slag outlet, allowing the slag discharged through the slag outlet to enter the slag outlet pipe 301 and exit the slag cooler 3.

[0058] The belt conveyor 1 includes a frame 101, pulleys 102, a belt 103, and support rollers 104. There are two pulleys 102, each located at one end of the frame 101. The belt 103 is positioned between the two pulleys 102. One pulley 102 is connected to a drive motor, which drives the belt 103 to rotate. The support rollers 104 are mounted on the frame 101 and attached to the lower surface of the belt 103, thus supporting the belt 103 from top to bottom and preventing it from sagging. The belt conveyor 1 is positioned below the slag discharge pipe 301, aligning the belt 103 with the pipe. The slag discharged from the pipe 301 falls onto the belt 103 from top to bottom, allowing the rotating belt 103 to transport the slag to a slag bin or designated storage area.

[0059] The spraying mechanism 2 is arranged above the belt conveyor 1, and comprises a spraying main pipe 201, a spraying branch pipe 202 and a spraying output pipe 203. The spraying main pipe 201 is arranged along the conveying direction of the belt conveyor 1 and is arranged above the belt 103 on the side of the slag outlet pipe 301 by a support or other fixing structure. A water supply device is connected to the spraying main pipe 201. The water supply device can be a municipal pipe network or a plant pipe network, and the spraying main pipe 201 is connected to the water supply device. The water in the pipe network is used to fill the spraying main pipe 201. The spraying branch pipe 202 is connected to the spraying main pipe 201 and is perpendicular to the spraying main pipe 201. The spraying branch pipe 202 is arranged above the belt 103 along the width direction of the belt 103 and covers each position in the width direction of the belt 103. The spraying output pipe 203 is connected to the spraying branch pipe 202 and is provided with a nozzle 204. The cooling water in the spraying main pipe 201 enters the spraying output pipe 203 through the spraying branch pipe 202, and then is sprayed downward to the slag on the belt 103 through the nozzle 204 to cool the slag.

[0060] Since the belt 103 is wound around the pulley 102 at one end of the frame 101, the belt 103 is arranged in two layers between the two pulleys 102. The upper layer is the upper belt 103, and the lower layer is the lower belt 103. The support roller 104 comprises an upper support roller 1041 which is attached to the lower surface of the upper belt 103 to support the upper belt 103. The slag discharged from the slag outlet pipe 301 falls on the upper belt 103 and is stably conveyed under the support of the upper support roller 1041.

[0061] The upper support roller 1041 is perpendicular to the conveying direction of the belt conveyor 1, i.e. arranged along the width direction of the belt 103. The upper support roller 1041 comprises a middle roller 1041-1 and two edge rollers 1041-2 arranged on both sides of the middle roller 1041-1. Both of the edge rollers 1041-2 are arranged upwardly inclined. The middle part of the upper belt 103 falls on the middle roller 1041-1, and the two sides of the upper belt 103 fall on the edge rollers 1041-2, respectively. The two sides of the upper belt 103 are upwardly tilted, and the cross section of the space surrounded by the upper belt 103 is in the shape of an inverted trapezoid.

[0062] The slag falls on the upper belt 103, and the upwardly turned portions on both sides of the belt 103 gather the slag to the center of the belt 103, avoiding the slag spreading on the belt 103. When the slag rolls and cools in the roller of the slag cooler 3, the outer part of the slag directly contacts the inner wall of the roller, and the heat is quickly taken away by the cooling liquid in the cooling pipeline, so that the outer part of the slag does not appear high-temperature red slag. The red slag is located in the inside of the whole slag, and is surrounded by the relatively low-temperature slag. If the slag falls on the belt 103 and spreads, the red slag in the slag is exposed and is likely to directly contact the belt 103. Although the water is sprayed for cooling, the high-temperature red slag can scald the belt 103 at the moment of contacting the belt 103. Therefore, the slag with the red slag falls on the belt 103, and the red slag is still wrapped in the inside of the slag due to the gathering of the slag by the upwardly turned portions on both sides of the belt 103. The whole temperature of the outer periphery of the slag is relatively low, avoiding the scalding of the red slag to the belt 103, and the red slag gradually cools to a low temperature level under the gradual spraying of the water.

[0063] The spraying output pipes 203 are provided with three, and the three spraying output pipes 203 are vertically opposite to the middle roller 1041-1 and the two edge rollers 1041-2 respectively, so that the middle roller 1041-1 and the two edge rollers 1041-2 each have a spraying output pipe 203 above. The water mist sprayed by the nozzles 204 of the three spraying output pipes 203 falls on the slag on the middle and both sides of the belt 103 respectively, ensuring that the water mist is fully distributed in the width direction of the belt 103 and fully cools the slag.

[0064] The structure design solves the problems of high cost and limited conveying distance of the traditional chain bucket conveyor, and effectively reduces the slag temperature through the spraying system, thereby protecting the belt conveyor 1 from high-temperature damage. The structure design of the belt conveyor 1 makes the belt 103 turn up on both sides, gathers the slag discharged by the slag cooler 3 on the belt 103, avoids the red slag in the inside of the slag being exposed and contacting the belt 103 due to the spreading of the slag on the belt 103, avoids the scalding of the high-temperature red slag to the belt 103, and ensures the service life of the belt 103. On the other hand, the structure design enables the belt conveyor 1 to be installed adjacent to the slag cooler 3, reduces the space occupation in the vertical direction, and enables the belt conveyor 1 to be used in space-limited occasions.

[0065] When the belt conveyor 1 has multiple slag coolers 3 along the line, a set of spraying branch pipes 202 and spraying output pipes 203 are provided corresponding to the slag discharge pipe 301 of each slag cooler 3.

[0066] In the present application, reference is made to Figure 2, two said edge rollers 1041-2 are symmetrically arranged. The structure design makes the two sides of the belt 103 turn up at the same angle under the support of the edge rollers 1041-2 at the same angle, the structure of the belt 103 is symmetrical, and the slag on the two sides of the belt 103 can be gathered to the middle to the same extent, so that the position of the slag on the belt 103 is centered, the weight of the slag is evenly distributed on the belt 103, and local serious wear of the belt 103 caused by uneven force is reduced. In addition, the center of gravity of the slag on the belt 103 is centered, so that the friction on one side of the belt 103 is larger than that on the other side, thereby preventing the belt 103 from gradually inclining to one side of the pulley 102 and the support roller 104 during operation caused by uneven friction, keeping the belt 103 running in the center, avoiding the belt 103 from deviating from the pulley 102 and the support roller 104, improving the stability of the slag conveying process, and avoiding the slag from spilling during the conveying process.

[0067] In the present application, referring to Figures 1 to 2 , the support roller 104 further comprises a lower support roller 1042, which is attached to the lower surface of the lower portion of the belt 103 to support the lower portion of the belt 103. This structure design can effectively support the lower portion of the belt 103, prevent the part of the belt 103 from sagging under its own gravity, prevent the belt 103 from gradually relaxing, ensure that the belt 103 is tightly attached to the pulley 102 and is efficiently driven to run, thereby smoothly conveying the slag and prolonging the service life of the belt 103.

[0068] In the present application, referring to Figures 1 to 2 , the spraying mechanism 2 further comprises a contact temperature sensor 205, a spraying electromagnetic valve 206 and a spraying controller (not shown in the figure). The contact temperature sensor 205 is arranged in the slag tapping pipe 301 to contact the waste slag in the slag tapping pipe 301. The spraying electromagnetic valve 206 is arranged on the spraying branch pipe 202 to control the opening and closing of the spraying branch pipe 202. The contact temperature sensor 205 and the spraying electromagnetic valve 206 are electrically connected to the spraying controller. The spraying controller measures the temperature of the slag in the slag tapping pipe 301 through the contact temperature sensor 205. When the measured temperature is higher than a threshold value, the spraying controller controls the spraying electromagnetic valve 206 to open, connects the spraying branch pipe 202 to the spraying main pipe 201, and under the action of water pressure, the cooling water enters the spraying branch pipe 202, so that the part of the slag conveyed from the slag tapping pipe 301 to the belt 103 and having a temperature exceeding the standard is sprayed and cooled through the nozzles 204 on the spraying output pipe 203. When the measured temperature is less than or equal to the threshold value, the spraying controller controls the spraying electromagnetic valve 206 to close, disconnects the spraying branch pipe 202 from the spraying main pipe 201, and stops spraying. The contact temperature sensor 205 can be a thermistor, a platinum resistance or other temperature sensor that measures the temperature of the measured object by contacting it.

[0069] The structure design, the spraying controller can monitor the temperature of the slag in the slag outlet pipe 301 of the slag granulator 3 in real time through the contact temperature sensor 205, and then control the on-off of the spraying electromagnetic valve 206 according to the temperature information. When the temperature exceeds the set value, the water path is turned on to start spraying, the slag temperature is reduced in time, the belt 103 is effectively prevented from being damaged due to high temperature, the service life of the belt 103 is prolonged, and the spraying can be stopped when the slag temperature is low, unnecessary waste of water resources is avoided, and the operation cost of the equipment is reduced.

[0070] In the present application, referring to Figure 2 , the spraying mechanism 2 further comprises an infrared temperature measuring instrument 207. The infrared temperature measuring instrument 207 is aligned from top to bottom to the upper part of the belt 103 and is electrically connected with the spraying controller. The spraying controller further measures the temperature of the whole slag on the belt 103 through the infrared temperature measuring instrument 207, that is, the overall measurement of the inside and outside of the slag is realized. In the case that there is red slag in the inside of the slag, the spraying controller determines that the temperature of the slag is over standard and starts the spraying, so as to ensure that the red slag is cooled to a lower temperature by spraying. The structure design utilizes the infrared temperature measuring instrument 207 to quickly detect the high-temperature red slag in the inside of the slag on the belt 103, which is complementary to the contact temperature sensor 205, ensures the overall monitoring of the temperature of the slag, starts the spraying system in time for cooling, and avoids the belt 103 from being scalded.

[0071] In the present application, referring to Figure 2 , the infrared temperature measuring instrument 207 is arranged above the edge roller 1041-2. Since the middle part of the belt 103 is vertically opposite to the slag outlet pipe 301, the infrared temperature measuring instrument 207 is located above the edge roller 1041-2, so that there is a spacing space between the two infrared temperature measuring instruments 207. The slag discharged from the slag outlet pipe 301 falls onto the belt 103 through the space, avoiding the hindering of the infrared temperature measuring instrument 207 to the slag conveying. In addition, the structure design makes the infrared temperature measuring instrument 207 be aligned obliquely from one side to the slag in the middle part of the belt 103, measures the temperature of the slag from two sides above, detects the internal temperature of the slag from multiple angles, improves the accuracy of temperature measurement, and ensures that the spraying system can respond quickly and cool the high-temperature area in a targeted manner.

[0072] In the present application, referring to Figures 3 to 4The spray output pipes 203 are all perpendicular to the spray branch pipes 202, so that the three spray output pipes 203 connected to the same spray branch pipe 202 are arranged in parallel, and the three spray output pipes 203 are all parallel to the moving direction of the belt 103. The nozzles 204 are arranged along the spray output pipes 203, so that the nozzles 204 on the same spray output pipe 203 are arranged along the moving direction of the slag on the belt 103, and the same part of the slag passes below the nozzles 204 during the movement on the belt 103, so as to be sprayed and cooled by the water mist sprayed by the nozzles 204. The nozzles 204 on the same spray output pipe 203 are all arranged along the radial direction of the corresponding spray output pipe 203, and are arranged in turn and staggered on both sides of the axis of the spray output pipe 203, so that one nozzle 204 faces one side of the belt 103, and the adjacent nozzle 204 faces the other side of the belt 103, and the water mist sprayed by the nozzles 204 is fully distributed on the width of the belt 103. The structure design ensures that the spray area is maximized in the moving direction and the width direction of the belt 103, covers the entire surface of the belt 103 and the slag, realizes uniform cooling, and avoids that the local temperature of the slag is too high to scald the belt 103.

[0073] In the present application, referring to Figure 5 The included angle between the adjacent nozzles 204 on the same spray output pipe 203 is 25° to 35°. Due to the longitudinal arrangement of the three spray output pipes 203, the included angle in the structure design makes the coverage range of the water mist sprayed by the nozzles 204 of each spray output pipe 203 not overlap too much, avoids the mutual interference of the water mist sprayed by the adjacent spray output pipes 203, ensures that the distribution of the spray flow is more uniform, and avoids local insufficient or excessive spraying.

[0074] In the present application, referring to Figure 1The spray output pipe 203 is arranged on one side of the slag outlet pipe 301, and the spray output pipe 203 is located above the material falling point of the slag discharged from the slag outlet pipe 301 on the belt conveyor 1, that is, when the material moves from front to back along the belt 103, the spray output pipe 203 is located at the rear side of the slag outlet pipe 301, and the slag thrown backward by the slag outlet pipe 301 falls directly below the spray output pipe 203. The structure design ensures that the spray water sprayed by the nozzle 204 can directly act downward on the slag just separated from the slag outlet pipe 301, ensures that the spray system can cool the slag at the first time when the slag leaves the slag outlet pipe 301, quickly reduces the temperature of the slag, and protects the belt 103. In addition, the structure design also avoids that the spray water falls on the belt 103 which does not carry the slag in advance, prevents the surface of the belt 103 from being wet, avoids that the belt 103 is aged due to long-time soaking in water, and on the other hand, avoids that the surface of the belt 103 is slippery, the slag slides and rolls on the surface of the belt 103, ensures that the surface of the belt 103 is dry, the belt 103 efficiently carries the slag to move, and ensures the conveying efficiency of the slag.

[0075] In the present application, the spray branch pipe 202 is connected to the end of the spray output pipe 203 away from the slag outlet pipe 301, so that the spray output pipe 203 is located between the slag outlet pipe 301 and the spray branch pipe 202. The structure design makes the spray output pipe 203 arranged adjacent to the slag outlet pipe 301, avoids that the spray branch pipe 202 separates the spray output pipe 203 from the slag outlet pipe 301, and ensures that the slag discharged from the slag outlet pipe 301 can be sprayed and cooled by the water mist in the falling process before contacting the belt 103, and ensures accurate spraying on the discharged slag and the material falling point on the belt 103.

[0076] Finally, it should be noted that: the embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts of each embodiment can be referred to.

[0077] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the specific embodiments of the present application can be modified or some technical features can be replaced by equivalent ones without departing from the spirit of the present application. They should be covered in the technical solution range of the present application.

Claims

1. A slag cooler discharging, cooling and conveying device, characterized in that, The utility model relates to a belt conveyor for being arranged below the slag discharge pipe of a slag cooler, comprising: a frame; two pulleys arranged at the two ends of the frame respectively; a belt arranged between the two pulleys; support rollers arranged on the frame and attached to the lower surface of the belt; a spraying mechanism arranged above the belt conveyor, comprising: a spraying main pipe arranged along the conveying direction of the belt conveyor, for connecting a water supply device; a spraying branch pipe connected to the spraying main pipe and perpendicular thereto; spraying output pipes connected to the spraying branch pipe and provided with nozzles; wherein the support rollers comprise upper support rollers attached to the lower surface of the upper belt, the upper support rollers being perpendicular to the conveying direction of the belt conveyor, the upper support rollers comprising a middle roller and two edge rollers respectively arranged on the two sides of the middle roller, the two edge rollers being arranged upwardly inclined so as to make the upper belt turn upward on both sides, and the spraying output pipes being three in number and vertically opposite to the middle roller and the two edge rollers respectively. The two edge rollers are symmetrically arranged.

2. The slag tap discharge cooling and conveying device according to claim 1, wherein The support rollers further comprise lower support rollers attached to the lower surface of the lower belt.

3. The slag tap discharge cooling and conveying device according to claim 1, wherein The spraying mechanism further comprises:

4. The slag tap cooler discharging, cooling and conveying device according to claim 1, characterized in that, a contact temperature sensor arranged in the slag discharge pipe; a spraying electromagnetic valve arranged on the spraying branch pipe; a spraying controller electrically connected to the contact temperature sensor for measuring the temperature of the waste slag in the slag discharge pipe, and electrically connected to the spraying electromagnetic valve for controlling the on-off of the spraying branch pipe.

5. The slag tap cooler discharging, cooling and conveying device according to claim 4, characterized in that, The spraying mechanism further comprises: an infrared temperature measuring instrument aligned with the upper belt from top to bottom and electrically connected to the spraying controller, so as to make the spraying controller measure the temperature of the waste slag on the belt.

6. The slag tap cooler discharge cooling and conveying device according to claim 5, characterized in that, The infrared temperature measuring instrument is arranged above the edge rollers.

7. The slag tap cooler discharge cooling and conveying device according to claim 1, characterized in that, The spraying output pipes are perpendicular to the spraying branch pipe, and the nozzles are arranged along the spraying output pipes; The nozzles are arranged radially along the spraying output pipes and staggered on both sides of the axis of the spraying output pipes.

8. The slag tap cooler discharge cooling and conveying device according to claim 7, characterized in that The included angle between adjacent nozzles on the same spraying output pipe is 25° to 35°.

9. The slag tap cooler discharge cooling and conveying device according to claim 1, characterized in that, The spraying output pipes are arranged on one side of the slag discharge pipe, so as to be located above the dropping point of the waste slag discharged from the slag discharge pipe on the belt conveyor.

10. The slag tap cooler discharge cooling and conveying apparatus according to claim 9, wherein The spraying branch pipe is connected to the end of the spraying output pipe away from the slag discharge pipe.

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