Tar and ammonia water separation system and coking production system
By utilizing density differences to achieve stratified separation in a tar-ammonia-water separation tank, the problem of repeated separation of tar-ammonia-water mixtures in coking production is solved, production efficiency is improved, and light and heavy tar are directly obtained.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-04-07
AI Technical Summary
In the existing technology, the tar-ammonia-water mixture needs to be separated by passing through a tar-ammonia-water separation tank and a light-heavy separation tank in the coking process, which leads to a cumbersome repeated separation process and affects production efficiency.
A tar-ammonia water separation system is adopted, which utilizes the density difference between tar and ammonia water to achieve stratified separation in the tar-ammonia water separation tank. The light tar and heavy tar are directly extracted into the storage tanks through a three-way regulating valve to avoid repeated separation.
It simplifies the separation process, improves production efficiency, reduces separation time, and directly obtains light and heavy tar.
Smart Images
Figure CN224086074U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to coking production technical field, concretely relates to a tar ammonia water separation system and coking production system. BACKGROUND
[0002] Tar is a kind of black or blackish-brown viscous liquid or semi-solid industrial by-product produced in the high-temperature dry distillation or pyrolysis process of organic matter (such as coal, wood, petroleum, etc.), which can be used as chemical raw materials and fuels after specific treatment process, and has considerable economic value.
[0003] In the coking production process, tar and ammonia water are almost produced at the same time, and they are both formed by the decomposition and chemical reaction of organic matter in coal in the high-temperature dry distillation process of coal. At the same time, tar and ammonia water usually flow out from the coke oven together in the coking production device to form a tar ammonia water mixture. This mixture needs to be further treated to separate tar and ammonia water and be recycled or treated respectively.
[0004] In the prior art, the produced tar ammonia water mixture is sent into a tar ammonia water separation zone, and the oil component and ammonia water in the tar ammonia water mixture are separated by a tar ammonia water separation tank first, and then the oil component is sent into a light-heavy oil separation tank to separate light tar and heavy tar for separate use. However, in the prior art, the separation operation is performed by the tar ammonia water separation tank and the light-heavy separation tank successively, which has the technical problem of repeated separation and complicated process affecting production efficiency. UTILITY MODEL CONTENTS
[0005] In order to solve the technical problem of repeated separation and complicated process affecting production efficiency in the prior art that the produced tar ammonia water mixture is sent into a tar ammonia water separation zone and separated by a tar ammonia water separation tank and a light-heavy separation tank successively when coking production is performed, the utility model provides a tar ammonia water separation system and a coking production system.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0007] In the first aspect, the utility model provides a tar ammonia water separation system, which comprises a tar ammonia water separation tank, a three-way regulating valve, a first storage tank and a second storage tank.
[0008] The tar ammonia water separation tank is used for receiving a tar ammonia water mixture and separating tar and ammonia water. A plurality of liquid outlets are arranged on the tar ammonia water separation tank from top to bottom, and the plurality of liquid outlets are respectively used for flowing out light tar and heavy tar.
[0009] Both the first storage tank and the second storage tank are connected to the liquid outlet via the three-way regulating valve.
[0010] Optionally, the tar-ammonia-water separation system further includes an oil pump, the inlet of which is connected to each of the liquid outlets, and a connecting valve is provided between the oil pump and each of the liquid outlets;
[0011] The outlet of the oil pump is connected to the first storage tank and the second storage tank through the three-way regulating valve.
[0012] Optionally, the oil pump is positioned below the tar-ammonia-water separation tank.
[0013] Optionally, the tar-ammonia-water separation system further includes a light-heavy oil separation tank, which is positioned below the tar-ammonia-water separation tank and the oil pump.
[0014] The inlet of the light and heavy oil separator is connected to the outlet, and the outlet of the light and heavy oil separator is connected to the inlet of the oil pump.
[0015] Optionally, a first directional valve is provided between the inlet and the outlet of the light and heavy oil separator. ，
[0016] A second duct valve is also provided between the outlet of the light and heavy oil separator and the oil pump.
[0017] Optionally, the tar-ammonia separation system further includes an ammonia treatment device connected to the tar-ammonia separation tank.
[0018] Optionally, the tar-ammonia separation system further includes a storage device, which is connected to the ammonia treatment device.
[0019] Secondly, this utility model provides a coking system, including any of the above-mentioned tar-ammonia-water separation systems.
[0020] The beneficial effects of this utility model are:
[0021] This invention provides a tar-ammonia separation system. The system separates the tar-ammonia mixture obtained during coking production using a tar-ammonia separation tank. During the separation process, due to the different densities of light tar, heavy tar, and ammonia in the tar, stratification occurs within the tank: the upper layer is light tar, the middle layer is ammonia, and the lower layer is heavy tar. After separation, a three-way regulating valve is used to control the flow, extracting the upper layer of light tar and the lower layer of heavy tar respectively, and transporting them to a first storage tank and a second storage tank, thereby directly obtaining light tar and heavy tar. The tar-ammonia water separation system of this invention utilizes the density difference between light tar, heavy tar, and ammonia water, combined with a three-way regulating valve, to directly extract light tar from the tar-ammonia water separation tank. This avoids the technical problem of repeated separation in the existing tar-ammonia water separation tank and light-heavy oil separation tank, which leads to cumbersome procedures and reduced production efficiency. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the tar-ammonia-water separation system of this utility model;
[0023] Figure 2 This is a further schematic diagram of the tar-ammonia-water separation system of this utility model.
[0024] The components include: 1. Tar-ammonia water separation tank; 11. Liquid outlet; 2. Oil pump; 21. Connecting valve; 3. Three-way regulating valve; 4. First storage tank; 5. Second storage tank; 6. Light and heavy oil separation tank; 61. First open valve; 62. Second open valve; 7. Ammonia water treatment device; 8. Storage device. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0027] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0028] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0029] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0030] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.
[0031] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.
[0032] In existing coking production systems, the produced tar-ammonia-water mixture is often sent to a tar-ammonia-water separation zone. First, the oil components and ammonia water in the mixture are separated in a tar-ammonia-water separation tank. Then, the oil components are sent to a light-heavy oil separation tank to separate light tar and heavy tar for separate utilization. However, due to the significant differences in density between light tar, heavy tar, and ammonia water, these components are already separated into layers during the tar-ammonia-water separation tank. In existing technology, the light and heavy tar are extracted and separated again in the light-heavy oil separation tank, resulting in redundant separation. Specifically, in the coking production process, each time the light and heavy tar are extracted and separated again in the light-heavy oil separation tank, it takes at least 4 hours, significantly hindering the overall production efficiency of the system.
[0033] Firstly, see [the following] Figure 1The diagram shows a schematic of a tar-ammonia water separation system described in this application, including a tar-ammonia water separation tank 1, a three-way regulating valve 3, a first storage tank 4, and a second storage tank 5. The tar-ammonia water separation tank 1 is used to receive a tar-ammonia water mixture and perform tar-ammonia water separation. Multiple liquid outlets 11 are arranged sequentially from top to bottom on the tar-ammonia water separation tank 1, and the multiple liquid outlets 11 are used to discharge light tar and heavy tar, respectively. The first storage tank 4 and the second storage tank 5 are both connected to the liquid outlets 11 through the three-way regulating valve 3.
[0034] In this embodiment, the tar-ammonia mixture obtained in coking production is separated into tar and ammonia in the tar-ammonia separation tank 1. During the separation process of tar and ammonia in the tar-ammonia separation tank 1, since the light tar, heavy tar and ammonia in the tar have different densities, stratification will occur in the tar-ammonia separation tank 1. That is, the upper layer is light tar, the middle layer is ammonia, and the lower layer is heavy tar. After the separation is completed, the upper layer of light tar and the lower layer of heavy tar are extracted by adjusting the connection of the three-way regulating valve 3 and respectively transported to the first storage tank 4 and the second storage tank 5, thereby directly obtaining light tar and heavy tar. The tar-ammonia water separation system of this invention utilizes the density difference between light tar, heavy tar, and ammonia water, combined with a three-way regulating valve 3, to directly extract light tar from the tar-ammonia water separation tank. This avoids the technical problem of repeated separation in the existing tar-ammonia water separation tank 1 and light-heavy oil separation tank, which leads to complicated procedures and reduced production efficiency.
[0035] Specifically, the density of light tar is generally 0.9 g / cm³. 3 The density of heavy tar is generally around 1.2 g / cm³. 3 The density of ammonia water produced during coking production is generally around 1 g / cm³. 3 Therefore, when separating light tar, ammonia, and heavy tar in a tar-ammonia separation tank, the light tar, ammonia, and heavy tar can be directly separated into upper, middle, and lower layers.
[0036] Optionally, refer to Figure 2 The tar-ammonia-water separation system of this utility model also includes an oil pump 2. The inlet of the oil pump 2 is connected to each outlet 11, and a connecting valve 21 is provided between the oil pump 2 and each outlet 11. The outlet of the oil pump 2 is connected to the first storage tank 4 and the second storage tank 5 through a three-way regulating valve 3.
[0037] In this embodiment, when extracting light tar, the connecting valve 21 corresponding to the outlet 11 is adjusted to connect the oil pump 2 to the upper layer of the tar-ammonia-water separation tank 1, and the three-way regulating valve 3 is adjusted to connect the oil pump 2 to the first storage tank 4, so as to transport the light tar to the first storage tank 4 for storage; when extracting heavy tar, the connecting valve 21 corresponding to the outlet 11 is adjusted to connect the oil pump 2 to the lower layer of the tar-ammonia-water separation tank 1, and the three-way regulating valve 3 is adjusted to connect the oil pump 2 to the second storage tank 5, so as to transport the light tar to the second storage tank 5 for storage.
[0038] Optionally, the oil pump 2 in this invention is positioned below the tar-ammonia-water separation tank 1.
[0039] In this embodiment, the oil pump 2 is positioned below the tar-ammonia-water separation tank 1, which facilitates the rapid movement of light tar and heavy tar in the tar-ammonia-water separation tank 1 into the oil pump 2 under their own weight.
[0040] Optionally, refer to Figure 2 The tar-ammonia-water separation system of this utility model also includes a light-heavy oil separation tank 6, which is set below the tar-ammonia-water separation tank 1 and the oil pump 2; the inlet of the light-heavy oil separation tank 6 is connected to the outlet 11, and the outlet of the light-heavy oil separation tank 6 is connected to the inlet of the oil pump 2.
[0041] In this embodiment, the tar-ammonia-water separation system also includes a light-heavy oil separation tank 6. The light-heavy oil separation tank 6 is connected to the outlet 11 and the oil pump 2, so that the light-heavy oil separation tank 6 can be used as a backup tank. During the production process, according to actual usage needs, such as when the first storage tank 4 or the second storage tank 5 is blocked or full, light tar and heavy tar can be introduced into the light-heavy oil separation tank 6 for buffering, so as to reduce the working pressure of the tar-ammonia-water separation system. Alternatively, the light-heavy oil separation tank 6 can be used as a buffer during the maintenance or cleaning of the tar-ammonia-water separation tank 1.
[0042] Optionally, a first open valve 61 is provided between the inlet and outlet 11 of the light and heavy oil separator 6 in this utility model, and a second open valve 62 is also provided between the outlet of the light and heavy oil separator 6 and the oil pump 2.
[0043] In this embodiment, a first open valve 61 is provided between the light and heavy oil separation tank 6 and the tar-ammonia-water separation tank 1. The connection between the light and heavy oil separation tank 6 and the tar-ammonia-water separation tank 1 can be controlled according to usage requirements. A second open valve 62 is also provided between the light and heavy oil separation tank 6 and the oil pump 2. When the light and heavy oil separation tank 6 is not in use, or after the light tar and heavy tar in the light and heavy oil separation tank 6 are extracted by the oil pump 2, the first open valve 61 and the second open valve 62 can be used to prevent the light tar or heavy tar from flowing back into the light and heavy oil separation tank 6 or the tar-ammonia-water separation tank 1.
[0044] Optionally, the tar-ammonia water separation system of this utility model further includes an ammonia water treatment device 7, which is connected to the tar-ammonia water separation tank 1.
[0045] In this embodiment, the ammonia water treatment device 7 is used to treat the excess ammonia water in the tar ammonia water separation tank 1, so as to process the ammonia water into ammonia gas and clean water, in order to prevent the excess ammonia water in the tar ammonia water separation tank from overflowing and causing harm to personnel or equipment.
[0046] Optionally, the tar-ammonia-water separation system of this utility model further includes a storage device 8, which is connected to the ammonia-water treatment device 7.
[0047] In this embodiment, the storage device 8 is used to store the ammonia gas and purified water produced by the ammonia water treatment device 7 for reuse.
[0048] Secondly, this utility model also provides a coking production system, which includes any of the above-mentioned tar-ammonia-water separation systems.
[0049] In this embodiment, the provided coking production system includes any of the above-described tar-ammonia-water separation systems, avoiding the technical problem of repeated separation in the existing tar-ammonia-water separation tank 1 and light-heavy oil separation tank, which leads to cumbersome processes and reduced production efficiency. It should be noted that the structure of this tar-ammonia-water separation system is consistent with the various tar-ammonia-water separation systems provided above, and its usage is also consistent, so it will not be described in detail here.
[0050] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0051] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A tar-ammonia-water separation system, characterized in that, The tar-ammonia-water separation system includes: a tar-ammonia-water separation tank (1), a three-way regulating valve (3), a first storage tank (4), and a second storage tank (5); The tar-ammonia water separation tank (1) is used to receive the tar-ammonia water mixture and perform tar-ammonia water separation; the tar-ammonia water separation tank (1) is provided with multiple liquid outlets (11) from top to bottom, and the multiple liquid outlets (11) are used to discharge light tar and heavy tar respectively. The first storage tank (4) and the second storage tank (5) are both connected to the liquid outlet (11) through the three-way regulating valve (3); The tar ammonia water separation system also includes an oil pump (2), the inlet of which is connected to each of the liquid outlets (11), and a connecting valve (21) is provided between the oil pump (2) and each of the liquid outlets (11). The outlet of the oil pump (2) is connected to the first storage tank (4) and the second storage tank (5) through the three-way regulating valve (3).
2. The tar-ammonia-water separation system according to claim 1, characterized in that, The oil pump (2) is positioned below the tar-ammonia-water separation tank (1).
3. The tar-ammonia-water separation system according to claim 2, characterized in that, The tar-ammonia-water separation system also includes a light-heavy oil separation tank (6), which is positioned below the tar-ammonia-water separation tank (1) and the oil pump (2); The inlet of the light and heavy oil separator (6) is connected to the outlet (11), and the outlet of the light and heavy oil separator (6) is connected to the inlet of the oil pump (2).
4. The tar-ammonia-water separation system according to claim 3, characterized in that, A first directional valve (61) is provided between the inlet of the light and heavy oil separator (6) and the outlet (11). A second directional valve (62) is also provided between the outlet of the light and heavy oil separator (6) and the oil pump (2).
5. The tar-ammonia-water separation system according to claim 1, characterized in that, The tar-ammonia water separation system also includes an ammonia water treatment device (7), which is connected to the tar-ammonia water separation tank (1).
6. The tar-ammonia-water separation system according to claim 5, characterized in that, The tar-ammonia-water separation system also includes a storage device (8), which is connected to the ammonia-water treatment device (7).
7. A coking production system, characterized in that, The coking production system includes a tar-ammonia-water separation system as described in any one of claims 1 to 6.