Rotary furnace ventilation device and rotary furnace

Abstract

The utility model relates to the technical field of chemical equipment, in particular to a rotary furnace ventilation device and a rotary furnace, and the rotary furnace ventilation device is characterized in that a furnace pipe is formed inside a furnace body, and an air inlet part and an air outlet part which are communicated with the furnace pipe are formed outside the furnace body; the gas transmission assembly is communicated with the gas inlet part; the exhaust assembly is communicated with the air outlet part and comprises a liquid sealing piece containing liquid, an air inlet pipe communicated with the liquid sealing piece and an exhaust pipe, one end of the air inlet pipe extends below the liquid level of the liquid, the other end of the air inlet pipe is communicated with the air outlet part, and the pressure in the furnace pipe is adjusted by adjusting the depth of the air inlet pipe immersed in the liquid; the exhaust pipe is located above the liquid level, and gas exhausted through the gas outlet part enters the position below the liquid level and then is exhausted from the exhaust pipe. The pressure in the furnace pipe can be adjusted, light materials are prevented from being discharged from the gas outlet part along with gas, errors generated when the final material yield is calculated are reduced, the experiment accuracy is improved, and the required pressure can be provided for the introduced reaction gas so that the reaction gas can fully react with the materials.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, in particular to a rotary kiln ventilation device and a rotary kiln. Background Art

[0002] The rotary kiln is an important equipment in the field of energy and chemical equipment. It is mainly used for uniform calcination and drying of powder materials and granular materials, and is particularly suitable for material processing experiments such as activated carbon, coking coal, and carbon black. The gas delivery currently used in the rotary kiln is to install a quick interface at the air inlet of the rotary kiln. When gas needs to be introduced, the connected hose is connected to the quick interface, and then the exhaust port is connected to an exhaust pipe to achieve external venting. When lighter materials are added to the furnace of the rotary kiln, due to the need to ensure sufficient ventilation, when the gas volume is large, the material will be taken out from the exhaust port with the gas, resulting in a large error in calculating the yield of the final material, affecting the accuracy of the experiment, and when the gas generated by the reaction is flammable and explosive gas, if it is directly discharged into the air, there will also be a large safety hazard. In addition, when the gas introduced is a reaction gas, a certain pressure is required to fully react with the material, and the gas introduced into the existing rotary kiln needs to be discharged in time, and the pressure is uncontrollable or there is no pressure atmosphere. Utility Model Content

[0003] In view of this, the purpose of the present application is to provide a rotary kiln ventilation device and a rotary kiln, so as to solve the problem that during the gas transportation process of the rotary kiln, lighter materials are easily carried out from the exhaust port with the gas, thereby causing a large error in calculating the final material yield and affecting the accuracy of the experiment; in addition, when the gas introduced is a reaction gas, a certain pressure is required to fully react with the material, and the gas introduced into the existing rotary kiln needs to be discharged in time, and there is a problem of uncontrollable pressure or no pressure atmosphere.

[0004] The first aspect of the utility model provides a rotary kiln ventilation device, which includes:

[0005] A furnace body, with a furnace core formed inside and an air inlet and an air outlet connected to the furnace core formed outside;

[0006] A gas delivery assembly, connected to the gas inlet;

[0007] An exhaust component is connected to the air outlet, and the exhaust component includes a liquid seal containing liquid, an air inlet pipe and an exhaust pipe connected to the liquid seal, one end of the air inlet pipe extends below the liquid surface of the liquid and the other end is connected to the air outlet, and the pressure in the furnace is adjusted by adjusting the depth of the air inlet pipe immersed in the liquid; the exhaust pipe is located above the liquid surface, and the gas discharged through the air outlet passes below the liquid surface and is then discharged from the exhaust pipe.

[0008] Preferably, the exhaust assembly further comprises:

[0009] A pressure detection member, connected to the air inlet pipe, for detecting the pressure in the furnace;

[0010] And / or, a regulating member, connected to the exhaust pipe, for regulating the speed at which the gas is discharged from the exhaust pipe.

[0011] Preferably, the gas delivery component includes a delivery channel and a gas supply part, the delivery channel has an outlet part connected to the air inlet part and multiple inlet parts connected to the outlet part, the gas supply parts are arranged in a one-to-one correspondence with the inlet parts, at least some of the gas supply parts contain different gases, and the gases delivered by different gas supply parts converge at the outlet part.

[0012] Preferably, the gas delivery component further comprises a flow detection component connected to the inlet portion, and the flow detection component is arranged in a one-to-one correspondence with the inlet portion, and is used to detect the flow rate of the gas output by the gas supply component.

[0013] Preferably, the gas delivery assembly further comprises an on-off piece connected to the inlet portion, and the on-off piece is arranged in a one-to-one correspondence with the inlet portion to control whether the gas can flow to the outlet portion.

[0014] Preferably, the outlet portion is provided with a buffer chamber, and the different gases are mixed in the buffer chamber.

[0015] Preferably, the inlet portion and the outlet portion are both formed as tubular structures;

[0016] The gas delivery assembly further comprises a multi-way connector, and the multi-way connector is respectively connected with the inlet portion and the outlet portion.

[0017] Preferably, the air inlet and the air outlet are both formed into a tubular structure, and the radial dimension of the air outlet is smaller than the radial dimension of the air inlet;

[0018] And / or, the air inlet is formed into a tapered tubular structure, and a radial dimension of an end of the air inlet facing the furnace is larger than a radial dimension of an end of the air inlet facing away from the furnace.

[0019] Preferably, the furnace core rotates in the furnace body;

[0020] A first bearing is provided between the air inlet and the air delivery assembly;

[0021] A second bearing is provided between the air outlet portion and the exhaust assembly.

[0022] A second aspect of the utility model provides a rotary kiln, comprising the rotary kiln ventilation device described in any one of the above technical solutions.

[0023] Compared with the prior art, the beneficial effects of the utility model are:

[0024] The utility model discloses a rotary kiln ventilation device, wherein a gas delivery component is connected with an air inlet part to supply and deliver required gas into a furnace, an exhaust component is connected with an exhaust part, an air inlet pipe is extended under the liquid surface of a liquid seal, and the gas discharged through the exhaust part is first passed under the liquid surface and then discharged from the exhaust pipe. Such an arrangement forms a certain micro-pressure in the furnace, and the pressure in the furnace can be adjusted by adjusting the depth of the air inlet pipe in the liquid, so as to avoid that after the gas is delivered to the furnace through the gas delivery component, lighter materials are discharged from the exhaust part along with the gas, thereby reducing the error in calculating the yield of the final material, so as to improve the accuracy of the experiment, and can provide the required pressure for the introduced reaction gas to make it fully react with the material; in addition, the liquid in the liquid seal can be an alkali solution or an acid solution, so as to clean the gas generated by the reaction, avoid direct discharge into the air, ensure discharge safety, and thus improve the stability and efficiency of the rotary kiln.

[0025] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A schematic structural diagram of a rotary kiln ventilation device provided in an embodiment of the utility model.

[0028] Icons: 10-furnace body; 11-furnace core; 12-air inlet; 13-air outlet; 21-air supply part; 221-entrance; 222-exit; 2222-buffer chamber; 23-flow detection part; 24-on-off part; 31-liquid sealing part; 311-liquid level; 32-inlet pipe; 33-exhaust pipe; 34-adjusting part; 35-pressure detection part; 41-first bearing; 42-second bearing. DETAILED DESCRIPTION

[0029] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but in addition to the operations that must occur in a particular order, changes that will be apparent after understanding the disclosure of the present application may be made. In addition, in order to improve clarity and brevity, descriptions of features known in the art may be omitted.

[0030] The features described herein may be implemented in different forms and should not be interpreted as being limited to the examples described herein. Rather, the examples described herein have been provided only to illustrate some of the many possible ways of implementing the methods, devices and / or systems described herein that will be apparent after understanding the disclosure of the present application.

[0031] Throughout the specification, when an element (such as a layer, a region, or a substrate) is described as being “on”, “connected to”, “bound to”, “over”, or “covering” another element, it may be directly “on”, “connected to”, “bound to”, “over”, or “covering” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on”, “directly connected to”, “directly bound to”, “directly over”, or “directly covering” another element, there may be no other elements present between them.

[0032] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0033] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, component, region, layer, or portion referred to may also be referred to as the second member, component, region, layer, or portion.

[0034] For ease of description, spatial relational terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element will subsequently be "below" or "lower" relative to the other element. Therefore, the term "above" includes both "above" and "below" orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.

[0035] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprise" and "have" list the stated features, quantities, operations, components, elements and / or their combinations that exist, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0036] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0037] The features of the examples described herein can be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0038] According to a first aspect of the utility model, a rotary kiln ventilation device is provided, which includes a furnace body 10, a gas delivery component and an exhaust component.

[0039] Hereinafter, the specific structures of the above-mentioned components of a rotary kiln ventilation device according to the present embodiment will be described.

[0040] In this embodiment, if Figure 1 As shown, a furnace core 11 is formed inside the furnace body 10, and an air inlet 12 and an air outlet 13 connected to the furnace core 11 are formed outside the furnace body 10; a gas supply component is connected to the air inlet 12 to supply required gas to the furnace core 11; an exhaust component is connected to the air outlet 13, and the gas in the furnace core 11 can be discharged from the exhaust component.

[0041] Specifically, Figure 1As shown, the exhaust assembly includes a liquid seal 31, an air inlet pipe 32 and an exhaust pipe 33, wherein the liquid seal 31 is formed into a closed box-type structure, and liquid is contained therein; the air inlet pipe 32 and the exhaust pipe 33 are formed into tubular structures and are respectively connected to the liquid seal 31, and one end of the air inlet pipe 32 connected to the liquid seal 31 extends below the liquid level 311 of the liquid, and the other end of the air inlet pipe 32 is connected to the gas outlet 13, and the gas discharged through the gas outlet 13 is passed through the air inlet pipe 32 to below the liquid level 311 of the liquid and then discharged from the exhaust pipe 33. Such an arrangement forms a certain micro-pressure in the furnace 11, and the pressure in the furnace 11 can be adjusted by adjusting the depth of the air inlet pipe 32 immersed in the liquid, thereby avoiding that after the gas is transported to the furnace 11 through the gas transmission assembly, the lighter material is discharged from the gas outlet 13 along with the gas, and the required pressure can be provided for the introduced reaction gas to fully react with the material.

[0042] It should be noted that, in this embodiment, the liquid may be water, or may be acid or alkali. When the liquid is acid or alkali, the gas generated by the reaction can be cleaned to ensure safe discharge.

[0043] More specifically, the exhaust pipe 33 is connected to the liquid seal 31 and is located above the liquid level 311, thereby preventing liquid from leaking from the liquid seal 31 and ensuring that the flammable and explosive gases produced by the reaction can first pass below the liquid level 311 and then be discharged from the exhaust pipe 33, thereby avoiding direct discharge into the air and ensuring discharge safety.

[0044] In a preferred embodiment, Figure 1 As shown, the exhaust assembly also includes a pressure detection member 35 connected to the air inlet pipe 32, which is used to detect the pressure in the furnace 11. In this way, the depth of the air inlet pipe 32 immersed in the liquid can be controlled according to the pressure in the furnace 11, so that the pressure in the furnace 11 can be adjusted to meet the pressure requirements of the experiment, which is conducive to improving the accuracy of the experimental results. The pressure detection member 35 can be a pressure gauge.

[0045] In this embodiment, if Figure 1 As shown, the exhaust assembly further includes an adjusting member 34 connected to the exhaust pipe 33 . The adjusting member 34 may be a ball valve, and the speed at which the gas is discharged from the exhaust pipe 33 can be adjusted by the adjusting member 34 .

[0046] Furthermore, in this embodiment, if Figure 1 As shown, the air inlet 12 and the air outlet 13 are both formed into a tubular structure, and the radial dimension of the air outlet 13 is smaller than the radial dimension of the air inlet 12, thereby increasing the difficulty of the material being carried out of the air outlet 13 along with the gas, making it difficult for the material in the furnace 11 to be carried out, thereby further reducing the experimental error caused by the material being carried out.

[0047] Furthermore, in this embodiment, if Figure 1As shown, the air inlet 12 is formed into a tapered tubular structure. Specifically, the radial dimension of one end of the air inlet 12 facing the furnace 11 is greater than the radial dimension of the end of the air inlet 12 facing away from the furnace 11. This arrangement allows the cross-section of the air inlet 12 in the direction of gas flow to gradually increase, resulting in a decrease in pressure when the gas enters the furnace 11, so that the material is less likely to be carried out from the air outlet 13, thereby improving the accuracy of the experimental results.

[0048] In this embodiment, if Figure 1 As shown, the furnace 11 rotates in the furnace body 10, a first bearing 41 is provided between the air inlet 12 and the gas delivery assembly, so as to prevent the gas delivery assembly from rotating with the furnace 11, and a second bearing 42 is provided between the air outlet 13 and the exhaust assembly, so as to prevent the exhaust assembly from rotating with the furnace 11. Specifically, the first bearing 41 is provided between the air inlet 12 and the outlet 222 described below; the second bearing 42 is provided between the air outlet 13 and the above-mentioned air inlet pipe 32, and both the first bearing 41 and the second bearing 42 are provided outside the furnace body 10.

[0049] In this embodiment, if Figure 1 As shown, the gas delivery assembly includes a delivery channel and a gas supply member 21; the gas supply member 21 can be a gas cylinder or other gas supply equipment; the delivery channel has an outlet 222 connected to the gas inlet 12 and multiple inlets 221 connected to the outlet 222, the gas supply members 21 and the inlets 221 are arranged one by one, at least some of the gas supply members 21 contain different gases, and the gases delivered by different gas supply members 21 converge at the outlet 222, thereby meeting the demand for mixed gas. The number of inlets 221 can be two or more, and the specific number can be set according to experimental requirements.

[0050] Specifically, in this embodiment, Figure 1 As shown, the inlet 221 and the outlet 222 are both formed into a tubular structure; the gas delivery assembly also includes a multi-way connector, which is respectively connected to the inlet 221 and the outlet 222. The connection achieved by the multi-way connector has the advantages of convenient disassembly and assembly and easy adjustment. For example, when the number of inlet 221 is two, a Y-type connector or a T-type connector can be used to assemble the two inlet 221 and one outlet 222.

[0051] More specifically, in this embodiment, the outlet portion 222 is provided with a buffer chamber 2222, and the buffer chamber 2222 can be formed into a cylindrical, rectangular or spherical cavity structure. When a mixed gas formed by multiple gases is required, the different gases will be mixed in the buffer chamber 2222 before entering the furnace body 10 to ensure that the gases are evenly mixed before entering the furnace 11, thereby meeting the experimental requirements and improving the experimental effects.

[0052] In a preferred embodiment, Figure 1As shown, the gas delivery component also includes a flow detection component 23 connected to the inlet portion 221. The flow detection component 23 can be a flow meter. The flow detection component 23 is set in a one-to-one correspondence with the inlet portion 221, and is used to detect the flow of the gas output by the gas supply component 21 connected to the inlet portion 221, thereby monitoring the gas delivery situation.

[0053] Furthermore, in this embodiment, if Figure 1 As shown, the gas delivery assembly also includes a switch 24 connected to the inlet 221. The switch 24 can be a hand valve or a solenoid valve. The switch 24 is arranged one-to-one with the inlet 221 and each switch 24 is arranged upstream of the confluence of the inlet 221 and the outlet 222 to control whether the gas can flow to the outlet 222. In this way, the corresponding switch 24 can be opened according to actual needs, so that the required gas can be connected to the furnace 11. In addition, the flow rate of gas delivery can be controlled by controlling the opening angle of the switch 24 and cooperating with the flow detection component 23 to achieve accurate gas delivery, ensure the stability and efficiency of the production process, reduce waste, and reduce costs.

[0054] According to a rotary kiln ventilation device of the utility model, the gas delivery component is connected with the air inlet part to supply the required gas into the furnace, the exhaust component is connected with the air outlet part, the air inlet pipe extends below the liquid surface of the liquid seal, and the gas discharged through the air outlet part first passes below the liquid surface and then is discharged from the exhaust pipe. Such an arrangement forms a certain micro-pressure in the furnace, and the pressure in the furnace can be adjusted by adjusting the depth of the air inlet pipe in the liquid, so as to avoid that after the gas is delivered to the furnace through the gas delivery component, the lighter material is discharged from the air outlet part along with the gas, thereby reducing the error in calculating the yield of the final material, so as to improve the accuracy of the experiment, and can provide the required pressure for the reaction gas introduced so that it can fully react with the material; in addition, the liquid in the liquid seal can be an alkali solution or an acid solution, so as to clean the gas generated by the reaction, avoid direct discharge into the air, ensure discharge safety, and thus improve the stability and efficiency of the rotary kiln.

[0055] The second aspect of the utility model provides a rotary kiln, comprising the above-mentioned rotary kiln ventilation device, and thus having all the beneficial technical effects of the rotary kiln ventilation device, which will not be repeated here.

[0056] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed in the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A rotary kiln ventilation device, characterized in that: include: A furnace body, with a furnace core formed inside and an air inlet and an air outlet connected to the furnace core formed outside; A gas delivery assembly, connected to the gas inlet; An exhaust assembly is connected to the gas outlet, and the exhaust assembly includes a liquid seal containing liquid, an air inlet pipe and an exhaust pipe connected to the liquid seal, one end of the air inlet pipe extends below the liquid surface of the liquid and the other end is connected to the gas outlet, and the pressure in the furnace is adjusted by adjusting the depth of the air inlet pipe immersed in the liquid; The exhaust pipe is located above the liquid surface, and the gas exhausted through the gas outlet portion passes into the area below the liquid surface and then is exhausted from the exhaust pipe.

2. A rotary kiln ventilation device according to claim 1, characterized in that: The exhaust assembly also includes: A pressure detection member, connected to the air inlet pipe, for detecting the pressure in the furnace; And / or, a regulating member, connected to the exhaust pipe, for regulating the speed at which the gas is discharged from the exhaust pipe.

3. A rotary kiln ventilation device according to claim 1, characterized in that: The gas delivery component includes a delivery channel and a gas supply part, the delivery channel has an outlet part connected to the air inlet part and multiple inlet parts connected to the outlet part, the gas supply parts are arranged in a one-to-one correspondence with the inlet parts, at least some of the gas supply parts contain different gases, and the gases delivered by different gas supply parts converge at the outlet part.

4. A rotary kiln ventilation device according to claim 3, characterized in that: The gas delivery component further includes a flow detection component connected to the inlet portion, and the flow detection component is arranged in a one-to-one correspondence with the inlet portion, and is used to detect the flow rate of the gas output by the gas supply component.

5. A rotary kiln ventilation device according to claim 3, characterized in that: The gas delivery assembly further includes a switch connected to the inlet portion, and the switch is arranged in a one-to-one correspondence with the inlet portion to control whether the gas can flow to the outlet portion.

6. A rotary kiln ventilation device according to claim 3, characterized in that: The outlet portion is provided with a buffer chamber, and the different gases are mixed in the buffer chamber.

7. A rotary kiln ventilation device according to claim 3, characterized in that: The inlet portion and the outlet portion are both formed into a tubular structure; The gas delivery assembly further comprises a multi-way connector, and the multi-way connector is respectively connected with the inlet portion and the outlet portion.

8. The rotary kiln ventilation device according to claim 1, characterized in that: The air inlet and the air outlet are both formed into a tubular structure, and the radial dimension of the air outlet is smaller than the radial dimension of the air inlet; And / or, the air inlet is formed into a tapered tubular structure, and a radial dimension of an end of the air inlet facing the furnace is larger than a radial dimension of an end of the air inlet facing away from the furnace.

9. A rotary kiln ventilation device according to claim 1, characterized in that: The furnace core rotates within the furnace body; A first bearing is provided between the air inlet and the air delivery assembly; A second bearing is provided between the air outlet portion and the exhaust assembly.

10. A rotary kiln, characterized in that: A rotary kiln ventilation device comprising the rotary kiln ventilation device according to any one of claims 1 to 9.

Images