Oxidized wax production system

Abstract

The present disclosure relates to an oxidized wax production system. The oxidized wax production system includes a feeding unit, an oxidation reaction unit, a tail gas treatment unit, and a product storage unit, wherein the feeding unit is configured to heat the solid-phase raw material into a liquid-phase raw material and then input it into the oxidation reaction unit; the oxidation reaction unit includes at least two oxidation reactors connected in series, and a gas-liquid separator is arranged on the top of each oxidation reactor, and the gas-liquid separator is configured to separate the product of the corresponding oxidation reactor into a gas-phase intermediate product and a liquid-phase intermediate product, and return the liquid-phase intermediate product to the corresponding oxidation reactor, and the gas-phase intermediate product is transported to the tail gas treatment unit; the feed port of the product storage unit is connected to the discharge port of the last oxidation reactor, and is configured to store the product of the oxidation reaction unit. The effect of increasing the liquid level of the liquid raw material and increasing the output in production and preventing the liquid-phase intermediate product from being carried to the tail gas treatment unit and causing danger is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of oxidized wax production, and in particular to an oxidized wax production system. Background Art

[0002] Oxidized wax has excellent emulsification, lubricity and oil solubility, so it is widely used in textiles, inks and coatings, rubber and plastic processing and other fields.

[0003] Oxidized wax is usually produced by heating the raw wax in an oxidation reactor at high temperature. In this process, a large amount of gaseous intermediate products are produced, and when discharged from the oxidation reactor, some liquid products are carried along. On the one hand, the liquid level of the liquid raw material in the oxidation reactor cannot be too high, thereby reducing the production of oxidized wax. On the other hand, when the gaseous product enters the tail gas treatment device for incineration, it carries the oxidized wax products, causing the incinerator to burn over-temperature, which is dangerous.

[0004] Therefore, technical personnel in this field need to design an oxidized wax production system that can separate the liquid products carried in the gas products and return the liquid products to the oxidation reactor to continue to participate in the reaction, thereby solving the problems of low oxidized wax production and overheating of the incinerator. Utility Model Content

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide an oxidized wax production system.

[0006] The present disclosure provides an oxidized wax production system, comprising:

[0007] A feeding unit, wherein the feeding unit is configured to heat the solid-phase raw material into a liquid-phase raw material and then feed it into the oxidation reaction unit;

[0008] The oxidation reaction unit comprises at least two oxidation reactors connected in series, and a gas-liquid separator is arranged on the top of each oxidation reactor, and the gas-liquid separator is configured to separate the product of the corresponding oxidation reactor into a gas phase intermediate product and a liquid phase intermediate product, and return the liquid phase intermediate product to the corresponding oxidation reactor, and the gas phase intermediate product is transported to the tail gas treatment unit;

[0009] A product storage unit, wherein the feed port of the product storage unit is connected to the discharge port of the last stage of the oxidation reactor and is configured to store the product of the oxidation reaction unit.

[0010] In one embodiment of the present disclosure, the gas-liquid separator is a cyclone separator, and a discharge port is provided at the bottom of the cyclone separator, and is connected to the top feed port of the oxidation reactor. Under the action of gravity, the separated liquid intermediate product is returned to the oxidation reactor.

[0011] In one embodiment of the present disclosure, the oxidation reaction unit includes four stages of oxidation reactors, and a reactor discharge pump is arranged between two adjacent stages of the oxidation reactors, and the reactor discharge pump is configured to transport the liquid product of the oxidation reactor of the previous stage to the oxidation reactor of the next stage.

[0012] In one embodiment of the present disclosure, the tail gas treatment unit includes an incinerator configured to burn gaseous products.

[0013] In one embodiment of the present disclosure, the tail gas treatment unit further includes an evaporator, which is connected to the cyclone separator and the incinerator and is configured to heat the gas phase product from the cyclone separator to a preset temperature and introduce it into the incinerator.

[0014] In one embodiment of the present disclosure, the feeding unit comprises:

[0015] a raw material tank configured to store raw materials;

[0016] an auxiliary agent tank, the auxiliary agent tank being configured to store an auxiliary agent;

[0017] A raw material pump, which is disposed on a discharge pipeline of the raw material tank and is configured to transport the raw material to the oxidation reactor;

[0018] An additive pump, which is disposed on a discharge pipeline of the additive tank and is configured to transport the additive to the oxidation reactor;

[0019] A raw material preheater is connected to the raw material tank, the auxiliary agent tank and the first-stage oxidation reactor, and is configured to preheat the raw material and the auxiliary agent before conveying them to the first-stage oxidation reactor.

[0020] In one embodiment of the present disclosure, the feed unit further includes a raw material filter, which is connected to the raw material tank and the raw material preheater and is configured to filter impurities in the solid-phase raw material.

[0021] In one embodiment of the present disclosure, the product storage unit comprises:

[0022] an acid value detector, the acid value detector being disposed in a feed pipeline of the product storage unit and configured to detect the acid value of the liquid phase product;

[0023] a non-conforming product tank, the non-conforming product tank being in communication with the oxidation reactor and configured to store liquid phase products that fail the acid value test;

[0024] A qualified product tank is connected to the oxidation reactor and is configured to store liquid products that pass the acid value test.

[0025] In one embodiment of the present disclosure, the oxidized wax production system also includes a return pump, which is connected to the unqualified product tank and the first-stage oxidation reactor through a pipeline, and is configured to return the liquid product that fails the acid value test to the first-stage oxidation reactor for re-oxidation reaction.

[0026] In one embodiment of the present disclosure, the oxidized wax production system further includes a feed return pump, which connects the unqualified product tank to each stage of the oxidation reactor through a pipeline, and a control valve is provided on the connecting pipeline corresponding to each stage of the oxidation reactor, and the control valve is configured to allow the liquid phase product that fails the acid value test to enter only one oxidation reactor at the same time;

[0027] Each level of the oxidation reactor has a corresponding acid value grade. When it is detected that the acid value of the unqualified liquid product reaches the corresponding acid value grade, the control valve connected to the corresponding oxidation reactor is opened, and the liquid product of the corresponding acid value grade is transported to the corresponding oxidation reactor through the return pump for re-oxidation reaction.

[0028] One beneficial effect of the oxidized wax production system disclosed in the present invention is that, using the oxidized wax production system disclosed in the present invention, a gas-liquid separator is provided on the top of each stage of the oxidation reactor, and the gas-liquid separator separates the product of the corresponding oxidation reactor into a gas intermediate product and a liquid intermediate product, and returns the liquid intermediate product to the corresponding oxidation reactor to prevent the liquid intermediate product from being carried to the tail gas treatment unit and causing danger; the liquid intermediate product is returned to the corresponding oxidation reactor after separation, which can increase the liquid level of the liquid raw material and increase the output during production. Compared with entering the next stage oxidation reactor, returning to the corresponding oxidation reactor can prevent the liquid intermediate product from having uneven acid value and affecting the quality of the final oxidized wax product. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0030] Figure 1 is a schematic diagram of an oxidized wax production system provided by an embodiment of the present disclosure;

[0031] Figure 2 It is a schematic diagram of a process for re-reacting a substandard product provided by an embodiment of the present disclosure;

[0032] Figure 3 It is a schematic diagram of a process for re-reacting a substandard product provided by another embodiment of the present disclosure.

[0033] Figures 1 to 3The one-to-one correspondence between the component names and the figure marks is as follows: 1-raw material tank; 2-raw material filter; 3-raw material preheater; 4-raw material pump; 5-auxiliary agent tank; 6-auxiliary agent pump; 7-oxidation reactor; 8-cyclone separator; 9-reactor discharge pump; 10-evaporator; 11-incinerator; 12-qualified product tank; 13-unqualified product tank; 14-control valve; 15-return pump. DETAILED DESCRIPTION

[0034] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure unless otherwise specifically stated.

[0035] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0036] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0037] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0038] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0039] In this document, “upper”, “lower”, “front”, “back”, “left”, “right”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0040] In this article, "first", "second", etc. are only used to distinguish each other, and do not indicate the importance and order, or the premise of each other's existence.

[0041] In this document, “equal”, “same”, etc. are not strictly limited in a mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use.

[0042] In order to solve the problem of low oxidized wax production and overheating of the incinerator 11, the present disclosure provides an oxidized wax production system. Figures 1 to 3 , the specific structure and working principle of the oxidized wax production system disclosed in the present invention are explained in detail with reference to the embodiments.

[0043] In one embodiment, the oxidized wax production system of the present invention includes: a feeding unit, an oxidation reaction unit, an exhaust gas treatment unit, and a product storage unit, wherein the feeding unit is configured to heat the solid raw material into a liquid raw material and then input it into the oxidation reaction unit; the oxidation reaction unit includes at least two stages of oxidation reactors 7 connected in series, and a gas-liquid separator is arranged on the top of each stage of oxidation reactor 7, and the gas-liquid separator is configured to separate the product of the corresponding oxidation reactor 7 into a gas intermediate product and a liquid intermediate product, and return the liquid intermediate product to the corresponding oxidation reactor 7, and the gas intermediate product is transported to the exhaust gas treatment unit; the feed port of the product storage unit is connected to the discharge port of the last stage of oxidation reactor 7, and is configured to store the product of the oxidation reaction unit.

[0044] Specifically, the feeding unit preheats the solid wax raw material and the auxiliary agent, so that the solid wax raw material is heated to a liquid raw material, and then transported to the oxidation reaction unit. The liquid raw material and the auxiliary agent are fully mixed, so that the raw material in the oxidation reactor 7 is fully oxidized. The oxidation reaction unit includes at least two stages of oxidation reactors 7 connected in series. Specifically, the number of oxidation reactors 7 to be used can be determined according to the oxidized wax output demand and equipment conditions. The oxidation reactors 7 are connected in series in sequence, the feed port of the first stage oxidation reactor 7 is connected to the feeding unit, and the feed ports of other oxidation reactors 7 are respectively connected to the discharge ports of the adjacent upper stage oxidation reactor 7. The acid value of the liquid raw material increases each time it passes through a first stage oxidation reactor 7. It passes through each stage oxidation reactor 7 in sequence to make the acid value reach the standard, and finally an oxidized wax product is obtained.

[0045] The liquid raw material will produce gaseous intermediate products and liquid intermediate products during the oxidation reaction. The gaseous intermediate products are not the products required for production, so they are discharged from the gas outlet of the oxidation reactor 7. In the process of discharging the gaseous intermediate products from the oxidation reactor 7, the gaseous intermediate products will carry a part of the liquid intermediate products and be discharged from the gas outlet of the oxidation reactor 7. A gas-liquid separator is provided on the top of each stage of the oxidation reactor 7, which can separate the gaseous intermediate products from the liquid intermediate products, return the liquid intermediate products to the corresponding oxidation reactor 7, and send the gaseous intermediate products to the tail gas treatment unit.

[0046] Due to the problem of gas-liquid mixing, the liquid level in the oxidation reactor 7 needs to be kept low, which in turn affects the output of oxidized wax. The gas-liquid mixture is discharged, which will also cause the gas-liquid mixed product to burn during exhaust gas treatment, causing the equipment to overheat and cause danger. Therefore, a gas-liquid separator is used to effectively separate the liquid intermediate product carried in the gas intermediate product to prevent the liquid intermediate product from being carried to the exhaust gas treatment unit and causing danger; the liquid intermediate product is returned to the corresponding oxidation reactor 7 after separation, which can increase the liquid level of the liquid raw material and increase the output during production. Compared with entering the next-level oxidation reactor 7, returning to the corresponding oxidation reactor 7 can prevent the liquid intermediate product from having uneven acid value and affecting the quality of the final oxidized wax product.

[0047] In one embodiment, the gas-liquid separator is a cyclone separator 8, and a discharge port is provided at the bottom of the cyclone separator 8, and is connected to the top feed port of the oxidation reactor 7. Under the action of gravity, the separated liquid intermediate product is returned to the oxidation reactor 7.

[0048] Specifically, a cyclone separator 8 is used for gas-liquid separation. The cyclone separator 8 includes a conical cylinder, a spiral air inlet pipe is arranged inside the conical cylinder, the air inlet is connected to the air outlet of the corresponding oxidation reactor 7, a discharge port is arranged at the bottom of the conical cylinder, and is connected to the top feed port of the oxidation reactor 7. The air outlet is arranged at the top of the conical cylinder, so that the gas phase intermediate product is separated from the liquid phase intermediate product and then discharged into the tail gas treatment unit through the air outlet. The cyclone separator 8 is simple to operate, has low power consumption, and is arranged at the top of the oxidation reactor 7. The separated liquid phase intermediate product can be returned to the corresponding oxidation reactor 7 by gravity alone, without the need to set up a pump to provide power.

[0049] In one embodiment, the oxidation reaction unit includes four oxidation reactors 7, and a reactor discharge pump 9 is arranged between two adjacent oxidation reactors 7. The reactor discharge pump 9 is configured to transport the liquid product of the upper oxidation reactor 7 to the next oxidation reactor 7.

[0050] Specifically, since the liquid raw material needs to react in the oxidation reactor 7 for a preset time, the use of a fourth-stage oxidation reactor 7 in actual production can increase the output of oxidized wax compared to the secondary oxidation reactor 7. The reactor discharge pump 9 is used between adjacent oxidation reactors 7 to transport the liquid product of the previous oxidation reactor 7 through a pipeline to the next oxidation reactor 7 to continue the oxidation reaction.

[0051] In one embodiment, the tail gas treatment unit comprises an incinerator 11, and the incinerator 11 is configured to burn gaseous products.

[0052] Specifically, the exhaust gas treatment is mainly achieved by burning the gaseous products in the incinerator 11. After the oxidation reaction, the gaseous products contain some organic matter, which will have an impact on the environment if directly discharged into the atmosphere. Therefore, the gaseous products are burned in the incinerator 11 to burn the organic matter therein, and the exhaust gas discharged can meet the emission standards.

[0053] In one embodiment, the tail gas treatment unit further includes an evaporator 10 , which is connected to the cyclone separator 8 and the incinerator 11 and is configured to heat the gas phase product from the cyclone separator 8 to a preset temperature and introduce the gas phase product into the incinerator 11 .

[0054] Specifically, the tail gas treatment unit also includes an evaporator 10, which is connected to the cyclone separator 8 and the incinerator 11 through a pipeline, and heats the gas phase product to a preset temperature to prevent the organic matter contained in the gas phase product from cooling and staying in the pipeline without being burned.

[0055] In one embodiment, the feeding unit includes a raw material tank 1, an auxiliary agent tank 5, a raw material pump 4, an auxiliary agent pump 6 and a raw material preheater 3, wherein the raw material tank 1 is configured to store raw materials; the auxiliary agent tank 5 is configured to store auxiliary agents; the raw material pump 4 is arranged on the discharge pipeline of the raw material tank 1, and is configured to transport the raw materials to the oxidation reactor 7; the auxiliary agent pump 6 is arranged on the discharge pipeline of the auxiliary agent tank 5, and is configured to transport the auxiliary agent to the oxidation reactor 7; the raw material preheater 3 connects the raw material tank 1, the auxiliary agent tank 5 and the first-stage oxidation reactor 7, and is configured to preheat the raw materials and auxiliary agents before transporting them to the first-stage oxidation reactor 7.

[0056] Specifically, the feeding unit includes a raw material tank 1, an additive tank 5, a raw material pump 4, an additive pump 6 and a raw material preheater 3. The raw material tank 1 and the additive tank 5 are used to store raw materials and additives, respectively. The additives include additives that affect the properties of the product and catalysts that catalyze the oxidation reaction. The raw materials and additives are respectively transported to the raw material preheater 3 through the raw material pump 4 and the additive pump 6, and the raw materials and additives are heated to the liquid phase and fully mixed and then enter the oxidation reactor 7 for a full oxidation reaction.

[0057] In one embodiment, the feeding unit further includes a raw material filter 2, which is connected to the raw material tank 1 and the raw material preheater 3 and is configured to filter impurities in the solid-phase raw material.

[0058] Specifically, there is a raw material filter 2 between the raw material tank 1 and the raw material preheater 3, which is used to filter out impurities in the solid raw material. Since impurities are easily mixed into the solid raw material, especially during transportation, the impurities will affect the oxidation reaction and further affect the quality of the oxidized wax product.

[0059] In one embodiment, the product storage unit includes an acid value detector, an unqualified product tank 13 and a qualified product tank 12, wherein the acid value detector is arranged in the feed pipeline of the product storage unit and is configured to detect the acid value of the liquid phase product; the unqualified product tank 13 is connected to the oxidation reactor 7 and is configured to store the liquid phase product that fails the acid value test; the qualified product tank 12 is connected to the oxidation reactor 7 and is configured to store the liquid phase product that passes the acid value test.

[0060] Specifically, the product storage unit includes an acid value detector, an unqualified product tank 13 and a qualified product tank 12. The qualified product tank 12 and the unqualified product tank 13 are used to store the liquid phase products that are qualified and unqualified respectively. The acid value detector is arranged on the connecting pipeline between the oxidation reactor 7 and the unqualified product tank 13 and the qualified product tank 12, and a valve for controlling the flow direction of the product is also arranged. When the acid value is qualified, the pipeline between the oxidation reactor 7 and the unqualified product tank 13 is closed, and the pipeline between the oxidation reactor 7 and the qualified product tank 12 is opened; when the acid value is unqualified, the pipeline between the oxidation reactor 7 and the qualified product tank 12 is closed, and the pipeline between the oxidation reactor 7 and the unqualified product tank 13 is opened. Furthermore, an electronic control system can be used to control the opening and closing of the valve according to the acid value detection result, so that the qualified product and the unqualified product can be separated for subsequent processing.

[0061] In one embodiment, the oxidized wax production system also includes a return pump 15, which is connected to the unqualified product tank 13 and the first-stage oxidation reactor 7 through a pipeline, and is configured to return the liquid product that fails the acid value test to the first-stage oxidation reactor 7 for re-oxidation reaction.

[0062] Specifically, unqualified products usually result from insufficient oxidation reaction time and incomplete oxidation reaction. The oxidized wax production system also includes a return pump 15, which is connected to the unqualified product tank 13 and the first-stage oxidation reactor 7 through a pipeline. When a certain amount of unqualified products is stored in the unqualified product tank 13, the return pump 15 transports the unqualified products to the first-stage oxidation reactor 7 through the pipeline for re-oxidation reaction.

[0063] In one embodiment, the oxidized wax production system also includes a return pump 15, which connects the unqualified product tank 13 to each stage of the oxidation reactor 7 through a pipeline. A control valve 14 is provided on the connecting pipeline corresponding to each stage of the oxidation reactor 7. The control valve 14 is configured to allow the liquid phase product that fails the acid value test to enter only one oxidation reactor 7 at the same time; each stage of the oxidation reactor 7 has a corresponding acid value grade. When it is detected that the acid value of the unqualified liquid phase product reaches the corresponding acid value level, the control valve 14 connected to the corresponding oxidation reactor 7 is opened, and the liquid phase product of the corresponding acid value level is transported to the corresponding oxidation reactor 7 through the return pump 15 for re-oxidation reaction.

[0064] Specifically, the return pump 15 can also connect the unqualified product tank 13 to each oxidation reactor 7 through a pipeline, and a control valve 14 is provided on the corresponding connecting pipeline of each oxidation reactor 7, so that the liquid phase product that fails the acid value test can only enter one oxidation reactor 7 at the same time. Each oxidation reactor 7 has a corresponding acid value level and is obtained in advance by measurement, or an acid value detector is provided at the outlet of each oxidation reactor 7 for real-time detection. After the acid value of the unqualified liquid phase product is detected, it is detected that it meets the acid value level corresponding to a certain oxidation reactor 7, then the control valve 14 connected to the corresponding oxidation reactor 7 is opened, and the liquid phase product of the corresponding acid value level is transported to the corresponding oxidation reactor 7 through the return pump 15 for re-oxidation reaction. Such a setting makes the degree of oxidation reaction of the product more accurately controlled, avoids the calculation of the reaction time, and avoids all equipment from re-participating in the oxidation reaction, thereby controlling the cost.

[0065] In addition, in order to facilitate better understanding, the production process of the present disclosure is described in detail below in conjunction with the actual application scenario of the oxidized wax production system.

[0066] 1. Start the oxidized wax production system, the raw material pump 4 and the auxiliary agent pump 6 transport the raw material and the auxiliary agent through the raw material filter 2 and the raw material preheater 3, and enter the first stage oxidation reactor 7;

[0067] 2. When the reaction time is reached in the first-stage oxidation reactor 7, the gaseous intermediate product carries a small amount of liquid intermediate product and enters the cyclone separator 8 through the gas outlet. The cyclone separator 8 separates the gaseous intermediate product from the liquid intermediate product. The gaseous intermediate product enters the evaporator 10 for preheating and then enters the incinerator 11 for combustion. The liquid intermediate product flows back to the oxidation reactor 7 under the action of gravity;

[0068] 3. The liquid intermediate product is sequentially transported to the second stage oxidation reactor 7, the third stage oxidation reactor 7, and the fourth stage oxidation reactor 7 through the reactor discharge pump 9, and the process of the first stage reactor and the corresponding cyclone separator 8 is repeated;

[0069] 4. The liquid product passes through the pipeline and is tested by the acid value detector to determine whether its acid value is qualified. If qualified, it enters the qualified product tank 12 and the production is completed; if unqualified, it enters the unqualified product tank 13;

[0070] 5. After the acid value is measured, the acid value level reaches the acid value level corresponding to the third-stage oxidation reactor 7, the control valve 14 connected to the third-stage oxidation reactor 7 is opened, and the liquid phase product is transported to the third-stage oxidation reactor 7 through the return pump 15 for re-oxidation reaction;

[0071] 6. Repeat the above steps until the product acid value test is qualified.

[0072] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the marketplace, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the present disclosure is defined by the appended claims.

Claims

1. An oxidized wax production system, characterized in that: The oxidized wax production system comprises: A feeding unit, wherein the feeding unit is configured to heat the solid-phase raw material into a liquid-phase raw material and then feed it into the oxidation reaction unit; The oxidation reaction unit comprises at least two oxidation reactors (7) connected in series, each of which is provided with a gas-liquid separator at the top, wherein the gas-liquid separator is configured to separate the product of the corresponding oxidation reactor (7) into a gas phase intermediate product and a liquid phase intermediate product, and return the liquid phase intermediate product to the corresponding oxidation reactor (7), and the gas phase intermediate product is transported to the tail gas treatment unit; A product storage unit, wherein the feed port of the product storage unit is connected to the discharge port of the last stage oxidation reactor (7), and is configured to store the product of the oxidation reaction unit.

2. The oxidized wax production system according to claim 1, characterized in that: The gas-liquid separator is a cyclone separator (8), and a discharge port is provided at the bottom of the cyclone separator (8), and is connected to the top feed port of the oxidation reactor (7). Under the action of gravity, the separated liquid intermediate product is returned to the oxidation reactor (7).

3. The oxidized wax production system according to claim 2, characterized in that: The oxidation reaction unit comprises four stages of oxidation reactors (7), and a reactor discharge pump (9) is arranged between two adjacent stages of the oxidation reactors (7). The reactor discharge pump (9) is configured to transport the liquid phase product of the oxidation reactor (7) of the previous stage to the oxidation reactor (7) of the next stage.

4. The oxidized wax production system according to claim 3, characterized in that: The tail gas treatment unit comprises an incinerator (11), and the incinerator (11) is configured to burn gaseous products.

5. The oxidized wax production system according to claim 4, characterized in that: The tail gas treatment unit further comprises an evaporator (10), wherein the evaporator (10) is connected to the cyclone separator (8) and the incinerator (11), and is configured to heat the gas phase product from the cyclone separator (8) to a preset temperature and introduce the gas phase product into the incinerator (11).

6. The oxidized wax production system according to claim 5, characterized in that: The feeding unit includes: A raw material tank (1), wherein the raw material tank (1) is configured to store raw materials; An auxiliary agent tank (5), wherein the auxiliary agent tank (5) is configured to store an auxiliary agent; A raw material pump (4), the raw material pump (4) being arranged on a discharge pipeline of the raw material tank (1) and configured to transport the raw material to the oxidation reactor (7); An auxiliary agent pump (6), the auxiliary agent pump (6) is arranged on the discharge pipeline of the auxiliary agent tank (5) and is configured to transport the auxiliary agent to the oxidation reactor (7); A raw material preheater (3), wherein the raw material preheater (3) is connected to the raw material tank (1), the auxiliary agent tank (5) and the first-stage oxidation reactor (7), and is configured to preheat the raw material and the auxiliary agent before conveying them to the first-stage oxidation reactor (7).

7. The oxidized wax production system according to claim 6, characterized in that: The feeding unit further comprises a raw material filter (2), wherein the raw material filter (2) is connected to the raw material tank (1) and the raw material preheater (3), and is configured to filter impurities in the solid-phase raw material.

8. The oxidized wax production system according to claim 7, characterized in that: The product storage unit comprises: an acid value detector, the acid value detector being disposed in a feed pipeline of the product storage unit and configured to detect the acid value of the liquid phase product; A failed product tank (13), the failed product tank (13) being in communication with the oxidation reactor (7) and configured to store a liquid phase product that fails an acid value test; A qualified product tank (12), the qualified product tank (12) is connected to the oxidation reactor (7) and is configured to store liquid products that pass the acid value test.

9. The oxidized wax production system according to claim 8, characterized in that: The oxidized wax production system also includes a return pump (15), which is connected to the unqualified product tank (13) and the first-stage oxidation reactor (7) through a pipeline, and is configured to return the liquid phase product that fails the acid value test to the first-stage oxidation reactor (7) for re-oxidation reaction.

10. The oxidized wax production system according to claim 8, characterized in that: The oxidized wax production system further comprises a feed return pump (15), wherein the feed return pump (15) connects the unqualified product tank (13) to each stage of the oxidation reactor (7) through a pipeline, and a control valve (14) is provided on the corresponding connecting pipeline of each stage of the oxidation reactor (7), and the control valve (14) is configured to allow the liquid phase product that fails the acid value test to enter only one oxidation reactor (7) at a time; Each stage of the oxidation reactor (7) has a corresponding acid value level. When it is detected that the acid value of the unqualified liquid phase product reaches the corresponding acid value level, the control valve (14) connected to the corresponding oxidation reactor (7) is opened, and the liquid phase product of the corresponding acid value level is transported to the corresponding oxidation reactor (7) through the return pump (15) to re-oxidize the reaction.

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