Spraying device

Abstract

The invention provides a spraying device, and belongs to the technical field of ironmaking. The liquid spraying device is used for spraying liquid to materials placed on a conveying device and comprises a liquid supply container, a spraying head, a connecting pipe and a first valve, and the liquid supply container is located above the conveying device; the spraying head is positioned right above the conveying device and is positioned below the liquid supply container; the connecting pipe is communicated with the liquid supply container and the spraying head, and a water seal structure is arranged on the connecting pipe; the first valve is arranged on the connecting pipe and located at the position of the water seal structure. Liquid waste can be avoided, and the service life of the conveying device can be prolonged; the operation is simple and the manufacturing cost is low.

Description

Technical Field

[0001] The invention relates to the technical field of ironmaking, in particular to a spraying device. Background Art

[0002] At present, in order to improve the low-temperature reduction pulverization rate of sintered ore, calcium chloride aqueous solution is usually sprayed on the sintered ore. By installing a spray head above the belt that transports the sintered ore, when the sintered ore passes through the spray head, the valve is opened to open the spray head to evenly spray the calcium chloride aqueous solution on the surface of the sintered ore. When the tail of the sintered ore in each bin leaves the spray head, the valve is closed to stop spraying the calcium chloride aqueous solution.

[0003] After the valve of the existing equipment is closed, a small amount of calcium chloride aqueous solution still drips, and the spraying cannot be stopped immediately and completely, so that the calcium chloride aqueous solution is sprayed on the raw ore and pelletized ore discharged on the belt, as well as the gap section of the belt where no material is pulled, resulting in excess consumption of the calcium chloride aqueous solution. At the same time, it also causes the accumulation of calcium chloride aqueous solution at the tail of the belt conveyor, which not only affects the beauty of the environment, but also corrodes the belt equipment and reduces its service life.

[0004] Therefore, a new solution is needed to solve the above problems. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a spraying device for solving the problem that the spraying of calcium chloride aqueous solution cannot be stopped immediately and completely in the prior art.

[0006] To achieve the above-mentioned purpose and other related purposes, the present invention provides a spraying device for spraying liquid on materials placed on a conveying device, which is specifically configured as follows: it includes a liquid supply container, a spray head, a connecting pipe and a first valve, wherein the liquid supply container is located above the conveying device; the spray head is located directly above the conveying device and below the liquid supply container; the connecting pipe connects the liquid supply container and the spray head, and a water seal structure is provided on the connecting pipe; the first valve is provided on the connecting pipe and is located at the water seal structure.

[0007] Optionally, the water seal structure is configured as a "U"-shaped structure, and a low-lying portion of the "U"-shaped structure is located below the sprinkler head.

[0008] Optionally, the first valve is located in a low-lying area of ​​the "U"-shaped structure.

[0009] Optionally, the spraying device further comprises a sensor disposed on the conveying device, and the sensor is electrically connected to the first valve.

[0010] Optionally, the spraying device further comprises a timer, and the timer is electrically connected to the sensor and the first valve.

[0011] Optionally, there are more than one sensor.

[0012] Optionally, the spraying device further comprises a second valve arranged on the connecting pipe.

[0013] Optionally, the second valve is arranged at the output end of the first valve, and the second valve is located in a low-lying part of the "U"-shaped structure.

[0014] Optionally, there is more than one liquid supply container.

[0015] As described above, a spraying device of the present invention has the following beneficial effects:

[0016] By arranging a water seal structure on the connecting pipe connecting the liquid supply container and the spray head, and arranging a first valve at the water seal structure, when the first valve is closed, the spray head can be closed in time to spray liquid due to the existence of the water seal structure, thereby avoiding waste of liquid. At the same time, since the liquid will not be sprayed onto the conveying device, it is beneficial to improve the service life of the conveying device; the operation is simple and the manufacturing cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shown is a schematic structural diagram of a spraying device according to an embodiment of the present invention;

[0018] Figure 2 Shown is a schematic structural diagram of a spray device according to an embodiment of the present invention from another perspective.

[0019] Description of Reference Numerals

[0020] 1- conveying device;

[0021] 2-Liquid supply container;

[0022] 3-Spraying head;

[0023] 4-connecting pipe; 41-water seal structure;

[0024] 5- first valve;

[0025] 6- Second valve. DETAILED DESCRIPTION

[0026] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0027] It should be noted that the diagram provided in the present embodiment only illustrates the basic concept of the present invention in a schematic manner, so the diagram only shows the components related to the present invention rather than drawing according to the number, shape and size of the components during actual implementation. The form, quantity and proportion of each component during actual implementation can be changed at will, and the component layout form may also be more complicated. The structure, proportion, size, etc. illustrated in the drawings of this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that the present invention can be implemented, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effect that the present invention can produce and the purpose that can be achieved. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of narration, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of the relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0028] See also Figure 1 and Figure 2 The present invention provides a spraying device for spraying liquid on a material placed on a conveying device 1, comprising a liquid supply container 2, a spray head 3, a connecting pipe 4 and a first valve 5. The connecting pipe 4 connects the liquid supply container 2 and the spray head 3, and the first valve 5 is installed on the connecting pipe 4. A water seal structure 41 is provided on the connecting pipe 4, and the first valve 5 is located at the water seal structure 41.

[0029] The liquid supply container 2 is located above the conveying device 1, and the spray head 3 is located directly above the conveying device 1 and below the liquid supply container 2, so that when the first valve 5 is opened, the liquid in the liquid supply container 2 can flow from the liquid supply container 2 to the spray head 3 under the action of gravity to spray the liquid on the material, which is beneficial to reducing costs. When the first valve 5 is closed, the spray head 3 can be closed in time to spray the liquid due to the presence of the water seal structure 41, avoiding waste of liquid. At the same time, since the liquid will not be sprayed onto the conveying device 1, it is beneficial to increase the service life of the conveying device 1.

[0030] In this embodiment, the conveying device 1 uses a belt, the material is sintered ore placed on the belt, and the liquid is a calcium chloride aqueous solution, which is sprayed on the sintered ore to increase the low-temperature reduction pulverization rate of the sintered ore. The sintered ore is placed in a bin container, and the bin container is placed on the belt to transport the sintered ore through the belt.

[0031] Exemplarily, the first valve 5 is used to connect and disconnect the liquid supply container 2 and the spray head 3, including but not limited to being set as a pneumatic valve.

[0032] In some embodiments, more than one liquid supply container 2 is provided, and the number of liquid supply containers 2 can be set to 1, 2, 3, etc., according to actual needs. When the number of liquid supply containers 2 is set to more than 2, except for the liquid supply container 2 in use, the remaining liquid supply containers 2 are all standby liquid supply containers 2, which is conducive to avoiding multiple additions of liquid to the liquid supply container 2 during use, thereby reducing work efficiency.

[0033] Exemplarily, the liquid supply container 2 is used to hold liquid, including but not limited to being set as a water tank, a water tank, etc.

[0034] In some embodiments, the water seal structure 41 is set as a "U"-shaped structure, and the low-lying part of the "U"-shaped structure is located below the spray head 3, so that when the first valve 5 is closed, the liquid at the output end of the first valve 5 cannot flow out through the spray head 3 due to the water seal principle of the "U"-shaped structure, thereby timely controlling the spray head 3 to stop spraying liquid. Such a structure is simple to manufacture, which is conducive to reducing the manufacturing cost and is simple to operate.

[0035] It should be noted that in order to facilitate the control of the spray head 3 to stop spraying liquid in time, the first valve 5 is located in the low-lying part of the "U"-shaped structure. When the first valve 5 is closed, the liquid at the output end of the first valve 5 will flow back, so that the liquid cannot flow out through the spray head 3.

[0036] In some embodiments, a sensor is installed on the conveying device 1 to detect the position of the storage container containing sintered ore on the conveying device 1, and the sensor is electrically connected to the first valve 5. When the position of the liquid supply container 2 and the spray head 3 is close and the length of the connecting pipe 4 is short, the first valve 5 opens the spray head to spray liquid. At this time, the sensor is installed at the initial position of the spraying area of ​​the spray head 3. When the sensor detects that the storage container containing sintered ore moves to the initial position of the spraying area of ​​the spray head 3, the first valve 5 is opened to allow the spray head 3 to spray liquid on the sintered ore.

[0037] In some embodiments, the sensor and the first valve 5 are also electrically connected with a timer. When the position of the liquid supply container 2 is far away from the spray head 3, resulting in a long length of the connecting pipe 4, if the sensor detects that the bin container containing sintered ore moves to the initial position of the spraying area of ​​the spray head 3 and then opens the first valve 5, the sintered ore at the front end of the bin container cannot be sprayed with liquid. In this case, it is necessary to determine the time for the liquid to flow from the first valve 5 to the spray head 3 after the first valve 5 is opened, so as to change the installation position of the sensor according to the speed at which the conveying device 1 conveys the bin container, so that when the bin container containing sintered ore moves to the initial position of the spraying area of ​​the spray head 3, the spray head 3 starts to spray liquid. At this time, the sensor is installed at the front end of the spraying area of ​​the sprayer, and a timer needs to be applied. When the sensor detects the bin container, the first valve 5 is controlled to open by the timer.

[0038] Exemplarily, more than one sensor is provided, and the number of sensors can be 1, 2, 3, etc., according to actual needs.

[0039] When there is one sensor, the sensor is installed at the front end of the spraying area of ​​the sprayer in the case of a timer. At this time, the timer has two functions. First, when the sensor detects the bin container, the first valve 5 is opened through the timer control; second, when the first valve 5 is opened, the spraying time of the spray head 3 is determined according to the spraying area of ​​the spray head 3, the size of the bin container and the speed of the conveying device 1 conveying the bin container, so as to close the first valve 5 through the timer.

[0040] When there are two sensors, when the length of the connecting pipe 4 is long and a timer is provided, the first sensor is installed at the front end of the spraying area of ​​the sprayer, and the second sensor is provided at the initial end of the spraying area of ​​the sprayer. When the first sensor detects the position container, the first valve 5 is opened through the timer control to allow the spray head 3 to spray the liquid. When the spray head 3 sprays the liquid, if the second sensor does not detect the position container, the first valve 5 is closed to stop the spray head 3 from spraying the liquid.

[0041] Exemplarily, the sensor is used to detect the position of the storage container containing sintered ore on the conveying device 1, including but not limited to being set as a photoelectric sensor, a proximity switch, etc.

[0042] In some embodiments, in order to adjust the flow rate of liquid sprayed by the spray head 3 , a second valve 6 is installed on the connecting pipe 4 .

[0043] Specifically, the second valve 6 is installed at the output end of the first valve 5, and the second valve 6 is located in the low-lying part of the "U"-shaped structure.

[0044] It should be noted that, usually, the second valve 6 is in a normally open state.

[0045] Exemplarily, the second valve 6 is used to adjust the flow rate of the liquid sprayed by the spray head 3, including but not limited to being set as a manual valve.

[0046] In summary, the present invention provides a spraying device, by arranging a water seal structure on the connecting pipe connecting the liquid supply container and the spray head, and a first valve is arranged at the water seal structure. When the first valve is closed, the spray head can be closed in time to spray liquid due to the existence of the water seal structure, thereby avoiding waste of liquid. At the same time, since the liquid will not be sprayed onto the conveying device, it is beneficial to improve the service life of the conveying device; the operation is simple and the manufacturing cost is low.

[0047] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A spraying device for spraying liquid on a material placed on a conveying device, characterized in that: include: A liquid supply container, located above the conveying device; a spray head, located directly above the conveying device and below the liquid supply container; A connecting pipe, connecting the liquid supply container and the spray head, wherein a water seal structure is provided on the connecting pipe; The first valve is arranged on the connecting pipe and located at the water seal structure.

2. The spraying device according to claim 1, characterized in that: The water seal structure is configured as a "U"-shaped structure, and the low-lying portion of the "U"-shaped structure is located below the sprinkler head.

3. The spraying device according to claim 2, characterized in that: The first valve is located in the low-lying part of the "U"-shaped structure.

4. The method according to claim 1, characterized in that: The spraying device further comprises a sensor arranged on the conveying device, and the sensor is electrically connected to the first valve.

5. The spraying device according to claim 4, characterized in that: The spraying device further comprises a time delay device, and the time delay device is electrically connected to the sensor and the first valve.

6. The spraying device according to claim 4 or 5, characterized in that: There is more than one sensor.

7. The spraying device according to claim 2, characterized in that: The spraying device further comprises a second valve arranged on the connecting pipe.

8. The spraying device according to claim 7, characterized in that: The second valve is arranged at the output end of the first valve, and the second valve is located at the low-lying part of the "U"-shaped structure.

9. The spraying device according to claim 1, characterized in that: There is more than one liquid supply container.

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