CN107362738B

CN107362738B - Automatic batch blending system and blending method

Info

Publication number: CN107362738B
Application number: CN201610318714.6A
Authority: CN
Inventors: 勾京生
Original assignee: Beijing Vp Co ltd
Current assignee: Beijing Vp Co ltd
Priority date: 2016-05-13
Filing date: 2016-05-13
Publication date: 2023-08-22
Anticipated expiration: 2036-05-13
Also published as: CN107362738A

Abstract

The utility model relates to the technical field of oil blending, in particular to an automatic batch blending system and a blending method adopted by the same. The automatic batch reconciliation system comprises: a plurality of inlet channels, at least one mixing kettle, a plurality of control valves, a stirrer and a heater. A plurality of inlet channels are used as material inlets of the ingredients; the inlet side of at least one blending kettle is communicated with the inlet channel, and each ingredient flowing into the blending kettle is blended in the at least one blending kettle; the control valves are respectively arranged on the inlet channels, the inlet side and the outlet side of the at least one mixing kettle; the stirrer is arranged in the blending kettle; and the heater is arranged in the blending kettle. The utility model also provides a blending method for blending by adopting the automatic batch blending system. By adopting the technical scheme, the automatic batch blending system and the blending method adopted by the same are high in blending precision, diversified in blending mode and capable of removing residues of ingredients in the blending system.

Description

Automatic batch blending system and blending method

Technical Field

The utility model relates to the technical field of oil blending, in particular to an automatic batch blending system and a blending method adopted by the same.

Background

In the existing oil blending technology field, conventional oil blending modes generally include: weighing various ingredients by manpower, respectively pouring a certain amount of various ingredients, and then stirring by manpower to realize the blending of various ingredients; or a semi-automatic blending mode is adopted, and rough control is carried out on various ingredients through pumping. In these traditional oil blending approaches, the following disadvantages may occur: 1. messy on site; 2. unsafe and difficult to operate; 3. the leakage is serious; 4. the measurement is inaccurate; 5. automatic formula management cannot be realized; 6. accurate blending cannot be achieved and qualified finished products are produced at one time.

For this purpose, for example, chinese patent publication No. CN204208512U, entitled "an SMB and ABB mixed control oil blending apparatus", discloses an oil blending apparatus, which includes a blending tank, the blending tank is connected to a main channel, a tank additive extraction unit, a first base oil pipe, a first additive pipe are provided on the blending tank, a blending tank is provided on the main channel, a second base oil pipe is provided on the blending tank, and the second base oil pipe is connected to the second additive pipe; a main channel between the blending kettle and the blending tank is provided with a total regulating valve; a first oil tank is arranged on a main channel between the blending kettle and the main regulating valve, and a first regulating valve is arranged on the first oil tank; the tail end of the main channel is provided with a second oil tank. The utility model has the following advantages: the main channel is provided with a blending kettle and a blending tank, additives are input through a barreled additive extraction unit arranged on the blending kettle, and the blending kettle can be used as an additive tank to convey different types of additives for the main channel.

However, the ABB blending system in the prior art represented by the above patent document has drawbacks such as insufficient blending accuracy, too single blending mode, and residual ingredients.

Disclosure of Invention

Based on the defects of the prior art, the utility model aims to provide an automatic batch blending system which has high blending precision and diversified blending modes and can remove residues of ingredients in a blending system and a blending method adopted by the automatic batch blending system.

In order to achieve the above object, the present utility model adopts the following technical scheme.

The present utility model provides an automatic batch reconciliation system comprising: the automatic batch tempering system comprises a plurality of inlet channels, at least one tempering kettle, a plurality of control valves, a stirrer and a heater, wherein the inlet channels are used as material inlets of all ingredients, the inlet channels are used for all ingredients to flow into the automatic batch tempering system, the inlet side of the at least one tempering kettle is communicated with the inlet channels, the control valves are respectively arranged on the inlet channels, the inlet side and the outlet side of the at least one tempering kettle, the control valves are used for controlling all ingredients to flow into and out of the automatic batch tempering system and controlling the flow of all ingredients in the automatic batch tempering system according to the preset proportion of all ingredients, the stirrer is arranged in the tempering kettle and used for stirring all ingredients in the tempering kettle, and the heater is arranged in the tempering kettle and used for heating the tempering kettle in the tempering kettle.

The automated batch tempering system also includes an additional charging unit in communication with the inlet side of the tempering tank, the additional charging unit including a barreled additive addition unit.

The blending kettle is communicated with the additional feeding unit through an additional feeding channel, and a ball sweeping line assembly is arranged between the additional feeding unit and the blending kettle on the additional feeding channel.

The at least one tempering kettle comprises a main tempering kettle and a pre-adjusting kettle and a kettle, wherein the volume of the pre-adjusting kettle is smaller than that of the main tempering kettle, and one-way communication from the pre-adjusting kettle to the main adjusting kettle is formed between the main adjusting kettle and the pre-adjusting kettle.

At least the stirrer arranged in the main blending kettle is a multi-stage stirrer, and at least the heater arranged in the main blending kettle is a multi-stage heater.

The automatic batch tempering system also includes a converging channel in communication with the outlet side of the at least one tempering tank, the outlet side of the converging channel in communication with the finished product collection assembly, the converging channel being for outflow of the finished product in the at least one tempering tank.

The automatic batch tempering system further comprises a flushing channel and a purging component, wherein the flushing channel is communicated with the inlet channel and the tempering kettle, the flushing channel is used for flushing the tempering kettle, the purging component comprises a purging channel and a purging valve, the purging channel is communicated with the inlet channel and/or the converging channel, and the purging component is used for purging the automatic batch tempering system.

The automatic batch tempering system also includes a plurality of sensors disposed in the at least one tempering tank, and the plurality of sensors are configured to measure various parameters of the ingredients within the at least one tempering tank, the plurality of sensors including at least a weighing element, a temperature detection element, and a liquid level detection element.

The tempering kettle is a flat-top cone-bottom tempering tank, the flat-top side of the tempering kettle is an inlet side, and the cone-bottom side of the tempering kettle is an outlet side.

The utility model also provides a blending method adopting the automatic batch blending system according to any one of the technical schemes, and when the automatic batch blending system is used for blending, the blending method comprises the following steps: a conveying step, a blending step, an output step, a purging step and a flushing step, wherein in the conveying step, the control valve is opened according to the preset proportion of each ingredient, so that each ingredient flows into the blending kettle in proportion to each other according to the preset proportion of each ingredient, and in the conveying step, each ingredient remained in each channel is purged into the blending kettle by using a purging component of the automatic batch blending system; after the conveying step is completed, in a tempering step, controlling a stirrer of the tempering tank to stir the ingredients in the tempering tank and controlling a heater of the tempering tank to heat the tempering tank, and measuring parameters of the ingredients by a plurality of sensors of the tempering tank to monitor a tempering state of the ingredients in the tempering tank; in the output step, standing the finished product obtained after the completion of the tempering for a preset time and outputting the finished product from the tempering kettle through a collecting channel of the automatic batch tempering system; after the output step is completed, in the purging step, opening the purging component, and purging the collecting channel by adding compressed gas; and after the purging step is completed, in the flushing step, flushing the reconciliation tank through a cleaning channel of the automatic batch reconciliation system, and finally evacuating the reconciliation tank.

By adopting the technical scheme, the automatic batch blending system and the blending method adopted by the same are high in blending precision, diversified in blending mode and capable of removing residues of ingredients in the blending system.

Drawings

Fig. 1 is a schematic diagram showing a connection structure of an automatic batch tempering system according to an embodiment of the present utility model.

Description of the reference numerals

A1 Main tempering tank A2 pre-tempering tank

B1 Service station B2 ball receiving station

DDU barreled additive adding unit

H1 Multistage heater H2 single-stage heater

N1 multistage stirrer N2 single-stage stirrer

M1, M2 electric motor

P1 and P2 air vent

L1 Convergence passage L2, L3 purge passage

W1, W2 weighing element

LSH1 and LSH2 high liquid level detecting element

TI1, TI2 first temperature detecting element

TE1, TE2 second temperature detecting element

FV1 to FV24 pneumatic ball valves FCV1, FCV2, FCV3 and FCV4 pneumatic regulating valve

Detailed Description

In summary, the automatic batch blending system (ABB system) according to the present utility model is suitable for small batch blending production with small batch, multiple batch types, high precision requirements, etc. The whole tempering process is controlled by a computer. The reconciliation process is as follows: firstly, sequentially injecting base oil and additive ingredients into a blending kettle according to the requirements of a blending formula; secondly, starting a stirrer and a heater, and obtaining a finished product through mechanical stirring; and finally, conveying and filling the finished product oil in the blending kettle or storing the finished product by a pump at the bottom of the blending kettle.

Specific embodiments of the present utility model will be described in detail below with reference to the drawings.

Fig. 1 is a schematic diagram showing a connection structure of an automatic batch tempering system according to an embodiment of the present utility model. As shown in fig. 1, the automatic batch tempering system according to an embodiment of the present utility model adopts a two-pot up-down structure (the upper preconditioning and pot A2 are optional according to the actual requirements of the process). The structure comprises a main regulator and kettle A1 positioned below the structure of fig. 1 and a pre-regulator and kettle A2 positioned above the structure of fig. 1, wherein the capacity of the main regulator and kettle A1 is far greater than that of the pre-regulator and kettle A2. In the present embodiment, the capacity of the main mixing tank A1 is 30T, and the capacity of the preconditioning tank A2 is 3T. The pre-regulating kettle A2 can be used as a small-batch finished oil blending function smaller than or equal to 3T, and the main regulating kettle A1 and the pre-regulating kettle A2 are arranged in a frame structure.

(Main tuner and kettle A1 and the structures of the parts thereof)

As shown in fig. 1, the main mixing tank A1 has a structure with a substantially flat top and a conical bottom, namely a flat top and a conical bottom mixing tank. The main regulator and tank A1 has a substantially cylindrical main body and a conical bottom portion integral with the main body. In this embodiment, the flat top side of the main mixer and kettle A1 is the inlet side, and the cone bottom side of the main mixer and kettle A1 is the outlet side.

On the inlet side of the master batch and kettle A1, the master batch and kettle A1 has: 1 base oil manifold port (each blending agent (ingredient) enters the kettle through an inlet passage), 1 additive manifold port (each blending agent (ingredient) enters the kettle through an inlet passage), 1 auxiliary material feed port, 2 spray cleaning ports, a deflation port P1, a pre-blending kettle feed port and the like (e.g. standby ports).

On the outlet side of the main regulator and the kettle A1, the main regulator and the kettle A1 are provided with 1 kettle bottom outlet at the approximate top end position of the cone bottom.

Inside and outside of the main conditioner and the kettle A1, the main conditioner and the kettle A1 have: 1 set of weighing elements (weighing and metering devices) W1, 1 high-level detection element LSH1, 2 temperature detection devices (including a first temperature detection element TI1 for local display and a second temperature detection element TE1 for remote acquisition), 1 set of multistage agitators (agitation equipment) N1, and one set of multistage heaters (heating facilities) H1.

The structure of the main mixing tank A1 and its respective parts will be described in further detail below.

The base oil manifold port, the additive manifold port and the 2 spray cleaning ports of the main blending tank A1 are all communicated with a plurality of inlet passages, and each inlet passage is used as a material inlet of each ingredient and for each ingredient to flow into the automatic batch blending system. As shown in fig. 1, the additive manifold port of the main regulator and tank A1 communicates with the inlet channels provided with pneumatic ball valves FV1, FV2, FV3, FV4, FV5 via pneumatic regulator valves FCV 1. The base oil header passage opening and the 2 spray cleaning openings of the main tempering tank A1 are respectively connected with the inlet passages provided with pneumatic ball valves FV6, FV7, FV8, FV9, FV10, FV11 via pneumatic control valves FCV2 and pneumatic ball valves FV 13. The auxiliary material feed inlet of the main mixing kettle A1 is communicated with the barreled additive adding unit DDU through a ball sending station B1 of the ball sweeping line assembly.

The air release port P1 of the main blending kettle A1 is mainly used for releasing air in the main blending kettle A1 in the process of injecting and blending various ingredients, and the air release port P1 is directly arranged at the top of the inlet side of the main blending kettle A1.

The pilot and tank feed inlet of main blending tank A1 and the tank bottom outlet of pilot and tank A2 are in communication with each other via pneumatic ball valve FV22. The pre-regulating and kettle feeding port is used for pre-regulating auxiliary agent after pre-regulating in the kettle A2 to flow into the main regulating and kettle A1.

The bottom outlet of the main mixing kettle A1 is communicated with the collecting channel L1 through a pneumatic ball valve FV 21.

A weighing element (weighing device) W1 and a high-level detecting element LSH1 are provided at the inlet side of the main body of the main conditioner and the tank A1. The weighing element W1 is used to meter the amount of each ingredient flowing into the main tempering tank A1, while the high level detecting element LSH1 is used to position the height of the main tempering tank A1 and the liquid level in the tank A1 to prevent the liquid level in the main tempering tank A1 from being too high.

A temperature detecting device is arranged at the part of the main regulator and the bottom of the kettle A1, which is close to the outlet side. As described above, the temperature detection device includes the first temperature detection element TI1 for local display and the second temperature detection element TE1 for remote acquisition. In this way, the temperature of the main tempering tank A1 can be monitored both locally and remotely.

In addition, a multistage stirrer N1 is provided inside the main mixer and the tank A1. In the present embodiment, the multistage stirrer N1 is a three-stage stirring device, and the multistage stirrer N1 is driven by an electric motor M1 and performs stirring of different stages according to the weight ratio of the ingredients in the main mixing tank A1.

A multi-stage heater H1 is arranged on the main body part and the bottom of the main regulator and kettle A1. In the present embodiment, the multi-stage heater H1 is a three-stage heating device, and different stages of heating are turned on according to the weight ratio of each ingredient in the main mixing tank A1. The multistage heater H1 is a heating coil wound around the outside of the main tank A1 in a multi-turn manner, and heats the main tank A1 by a heating medium flowing through the heating coil. In the present embodiment, as shown in fig. 1, on the inlet side of the heating coil, the flow of the heating medium into each stage heater, that is, the opening of each stage heater is controlled by the pneumatic ball valves FV15, FV16, FV17; on the outlet side of the heating coil, the flow of heating medium out of the heaters of each stage is controlled by a pneumatic ball valve FV18.

(Structure of Pre-mixing kettle A2 and its portions)

As shown in fig. 1, the overall structure of the preconditioning and kettle A2 is substantially the same as the overall structure of the major preconditioning and kettle A1. The pre-mixing kettle A2 also has a structure with a nearly flat top and a cone bottom, namely a flat top and a cone bottom mixing tank. The pre-conditioning tank A2 has a substantially cylindrical main body and a conical bottom portion integral with the main body. In this embodiment, the flat top side of the preconditioning vessel A2 is the inlet side and the tapered bottom side of the preconditioning vessel A2 is the outlet side.

On the inlet side of the preconditioning and tank A2, the preconditioning and tank A2 has: 1 base oil manifold port (each ingredient (ingredients) enters the kettle through an inlet passage), 1 additive manifold port (each ingredient (ingredients) enters the kettle after passing through an inlet passage), 1 auxiliary material feed port, 2 spray cleaning ports, a deflation port P2 and the like (e.g. standby ports).

On the outlet side of the preconditioning and kettle A2, the preconditioning and kettle A2 has 1 kettle bottom outlet at approximately the top end of the cone bottom.

Inside and outside of the preconditioning and kettle A2, the preconditioning and kettle A2 has: 1 set of weighing elements (weighing and metering devices) W2, 1 high-level detection element LSH2, 2 temperature detection devices (including a first temperature detection element TI2 for local display and a second temperature detection element TE2 for remote acquisition), 1 set of single-stage agitators (agitation equipment) N2, and one set of single-stage heaters (heating facilities) H2.

The structure of the preconditioning tank A2 and its respective parts will be described in further detail below.

The base oil manifold port, the additive manifold port and the 2 spray cleaning ports of the preconditioning tank A2 are all in communication with a plurality of inlet passages, each inlet passage serving as a material inlet for each ingredient and for each ingredient to flow into the automated batch tempering system. As shown in fig. 1, the additive manifold port of the pre-conditioning and tank A2 communicates with the inlet channels provided with pneumatic ball valves FV1, FV2, FV3, FV4, FV5 via pneumatic regulator valves FCV 3. The base oil header passage opening and the 2 spray cleaning openings of the preconditioning tank A2 are each connected via a pneumatic control valve FCV4 and a pneumatic ball valve FV14 to the inlet passages provided with pneumatic ball valves FV6, FV7, FV8, FV9, FV10, FV 11. The auxiliary material feed port of the pre-mixing kettle A2 is communicated with the barreled additive adding unit DDU through a ball sweeping line assembly (comprising a ball sending station B1 and a ball receiving station B2).

The air release port P2 of the pre-mixing kettle A2 is mainly used for releasing air in the pre-mixing kettle A2 in the process of injecting and mixing ingredients, and the air release port P2 is directly arranged at the top of the inlet side of the pre-mixing kettle A2.

As described above, the tank bottom outlet of the preliminary adjustment and tank A2 and the preliminary adjustment and tank feed inlet of the main adjustment and tank A1 are communicated with each other via the pneumatic ball valve FV22. In addition, the bottom outlet of the pre-mixing kettle A2 is also communicated with the collecting channel L1 through a pneumatic ball valve FV 23.

A weighing element (weighing and metering device) W2 and a high-level detection element LSH2 are provided at the inlet side portion of the main body portion of the preliminary adjustment and tank A2. The weighing element W2 is used to meter the amount of each ingredient flowing into the preconditioning tank A2, while the high level detecting element LSH2 is used to position the level of the liquid in the preconditioning tank A2 to prevent the liquid level in the preconditioning tank A2 from becoming too high.

A temperature detecting device is provided at the outlet side portion of the bottom of the preliminary mixing tank A2. As described above, the temperature detection means includes the first temperature detection element TI2 for local display and the second temperature detection element TE2 for remote acquisition. In this way, the temperature of preconditioning tank A2 can be monitored both locally and remotely.

In addition, a single-stage stirrer N2 is provided inside the pre-conditioning and tank A2. In the present embodiment, the single-stage mixer N2 is driven by an electric motor M2 and is used for mixing and blending the ingredients in the preconditioner and kettle A2.

A single-stage heater H2 is provided on the main body and bottom of the pre-conditioning and tank A2. In the present embodiment, the single-stage heater H2 is a heating coil wound around the outside of the pre-mixing tank A2 in a multi-turn manner, and the pre-mixing tank A2 is heated by a heating medium flowing through the heating coil. In the present embodiment, as shown in fig. 1, on the inlet side of the heating coil, the flow of the heating medium into the single-stage heater H2 is controlled by the pneumatic ball valve FV19, that is, the turning on of the single-stage heater H2 is controlled; on the outlet side of the heating coil, the flow of heating medium out of the single stage heater H2 is controlled by a pneumatic ball valve FV20.

The pneumatic ball valves and the pneumatic regulating valves are used for controlling the ingredients to flow into and out of the automatic batch blending system and controlling the flow of the ingredients in the automatic batch blending system according to the preset proportion of the ingredients, so that the pneumatic ball valves and the pneumatic regulating valves are collectively called a control valve.

In addition, the main mixer and tank A1 may also be provided with a low level sensor for determining the level of each ingredient in the main mixer tank A1 in order to determine the level of agitation and heating to be employed by the multistage agitators N1 and the multistage heaters H1.

(Structure of other parts of automatic batch mixing System)

As shown in FIG. 1, the automated batch tempering system according to an embodiment of the present utility model also includes a purge assembly. The purge assembly includes a purge passage L2 communicating with an inlet passage provided with the pneumatic ball valves FV6, FV7, FV8, FV9, FV10, FV11 and a purge passage L3 communicating with the collection passage L1 at a downstream side of the pneumatic ball valve FV 23. A pneumatic ball valve FV12 is provided as a purge valve in the purge passage L2, and a pneumatic ball valve FV24 is provided as a purge valve in the purge passage L3. The pneumatic ball valve and the purge valve can be utilized to purge the automatic batch blending system.

(other specifications and major parameters of automatic batch blending System)

Other specifications and main parameters that can be employed by the automatic batch reconciliation system in accordance with the utility model are described below.

a. Other specifications are as follows:

1) The main blending kettle A1 and the pre-blending kettle A2 can be adopted to carry out multi-blending kettle blending (the most complex condition) according to the field requirement, and the main blending kettle A1 or the pre-blending kettle A2 can be used for carrying out single-blending kettle blending. The main mixing kettle A1 is generally: 10T, 15T, 20T or 30T, preconditioning tank A2 is typically: 1T, 2T or 3T.

2) The main blending kettle A1 and the preset and kettle A2 are internally provided with high-efficiency vertical stirrers (namely a multistage stirrer N1 and a single-stage stirrer N2) capable of being remotely switched.

3) The heaters H1 and H2 used for the main blending kettle A1 and the pre-adjusting kettle A2 are heat conducting oil heating coils. The heating coil of the main blending kettle A1 is three-section type and can be controlled respectively, and the temperature can be increased to 60 ℃ from the ambient temperature during automatic batch blending.

4) The main blending kettle A1 and the air release ports P1 and P2 of the pre-adjusting kettle A2 are used as manholes and solid feeding ports.

5) The main blending tank A1 and the pre-adjusting and tank A2 can also be provided with a transmitter, a weighing control system, a field cabinet (communicated with a blending control system bus), an electrostatic grounding electrode and the like.

6) The interfaces of the automatic batch blending system and the external pipeline are all in flange connection, and the interface flange specification is preferably: ANSI B16.5 150lbs.

b. The main parameters are shown in Table 1 (taking as an example a 3T preconditioner and tank A2 and 30T major and tank A1) and the data in the following tables are designed based on the parameters of the oil being conditioned and are not fixed values.

TABLE 1

(automatic batch blending method of blending System)

The reconciliation method of the automatic batch reconciliation system in accordance with the utility model will be described below. The operation state of the automatic batch reconciliation system in accordance with the utility model will first be described.

1) Standby state: all control valves (pneumatic ball valves and pneumatic regulating valves) are in a closed state; the main mixing kettle A1 and the pre-mixing kettle A2 are free of ingredients (materials), all the sensor elements are restored to the initial state, and the sweeping balls of the ball sweeping assembly are all at the initial positions.

2) Reconciling state:

firstly, according to the quantity of single batch of finished oil produced by a user and the proportion of each ingredient, the adding quantity of each ingredient according to a proportion is generated, each ingredient is sequentially added, the blending process is executed until the finished product is inspected to be qualified, and the current batch blending work is completed.

The following list of examples describes the reconciliation conditions described above. In this example, a multi-blending kettle blending mode (blending by using a double kettle) is adopted, the pre-blending kettle A2 is used for blending the auxiliary agent, and the main blending kettle A1 is responsible for blending the main agent with a large dosage in the formula. All cleaning base oils are formulation components. The blending ratios of the finished oils to be blended in this example are listed in table 2 below.

TABLE 2

The specific reconciliation process is described below.

● Pre-mixing kettle A2 additive

(1) Preconditioning kettle A2 plus base oil J1

Opening a pneumatic control valve (feed valve) FCV4 of the preconditioning tank A2, wherein the opening of the pneumatic control valve FCV4 is set to 100%; opening a pneumatic ball valve FV6 of a base oil J1 channel; the base oil J1 transfer pump (not shown) is started to start feeding. When the single dose is added to 90%, the opening degree of the pneumatic control valve FCV4 is set to 50%, and the opening degree is gradually reduced according to the percentage of the added dose (ensuring the accuracy of the added dose); when a single dose is added to 99% (empirical value, depending on how much medium remains in the conduit after the valve), the pneumatic ball valve FV6 is closed, the base oil J1 feed pump is stopped, and the opening of the pneumatic regulator valve FCV4 is kept at 100% (if no base oil is added in the later step, the pneumatic regulator valve FCV4 is closed).

(2) The pre-mixing kettle A2 is added with an additive T1

Opening a pneumatic control valve (feed valve) FCV3 of the preconditioning tank A2, wherein the opening of the pneumatic control valve FCV3 is set to 100%; opening a pneumatic ball valve FV1 of the additive T1 channel; the additive T1 delivery pump (not shown) is started to start feeding. When the single dose is added to 90%, the opening degree of the pneumatic control valve FCV3 is set to 50%, and the opening degree is gradually reduced according to the percentage of the added dose (ensuring the accuracy of the added dose); when a single dose is added to 99% (empirical value, depending on how much medium remains in the conduit after the valve), FV1 is closed, additive T1 delivery pump is stopped, and the opening of pneumatic control valve FCV3 is kept at 100% (pneumatic control valve FCV3 is closed if no additive is added in the later step).

(3) Pre-mixing kettle A2 and adding barreling agent D1

And opening a material valve of a feeding ball station (ball receiving station B2) of the pre-mixing kettle A2, sending out an instruction that the barreled additive adding unit DDU can pump the additive, and waiting for the completion of pumping of the barreled additive adding unit DDU. There are two cases in this process:

a. and when the single batch of agent is pumped out by the barreled additive adding unit DDU, and the barreled agent is not contained in the subsequent steps, executing returning and line sweeping. The method comprises the steps of keeping a material valve of a barreled additive adding unit DDU feeding ball station (ball collecting station B2) open, and executing a line sweeping step; the material valve of the outlet ball station (ball service station B1) of the barreled additive adding unit DDU is closed, the air inlet valve of the ball service station B1 is opened, and the sweeping ball is sent to the ball collecting station B2 of the pre-adjusting and kettle A2. When the ball receiving station B2 detects that a ball is in place, the material valve of the ball receiving station B2 is closed in a delayed manner, the air inlet valve of the ball sending station B1 is closed, the discharge valve is opened, and a certain time is delayed; and opening an air inlet valve of the ball receiving station B2 to send the sweeping ball back to the ball sending station B1, closing the air inlet valve of the ball receiving station B1 after the ball sending station B1 detects that the ball is in place, opening a discharge valve of the ball receiving station B2 for a certain time delay to empty the air in the pipeline, closing the discharge valve of the ball receiving station B2, and completing the sweeping work.

Note that the purge oil of the barreled additive addition unit DDU may be returned to the preconditioning tank A2 only when the preconditioning tank A2 is blended as a single tank product oil, and typically the purge oil of the barreled additive addition unit DDU is returned only to the main blending tank A1.

b. And when the single batch of agent is pumped out by the barreled additive adding unit DDU, and the barreled agent is still in the subsequent step, closing a material valve of the ball receiving station B2, and waiting for executing the next pumping out of the barreled additive adding unit DDU. And executing a line sweeping step until no barreled additive adding unit DDU is operated for pumping barreled agent.

(4) The pre-mixing kettle A2 performs the heating and stirring steps

Opening a pneumatic ball valve (heating valve) FV19 and FV20; the electric motor (stirring motor) M2 is started to perform heating and stirring. When the heating temperature set point is reached, the pneumatic ball valves FV19, FV20 are closed. The electric motor M2 is operated for a set time to automatically stop stirring. The electric motor M2 can switch the local control on site, and the stirring operation can be started manually.

Note that the heater has a high heat source temperature and fast conduction, and the pneumatic ball valves FV19, FV20 are closed in advance according to the set value, preventing the ingredients in the pre-tempering tank A2 from being excessively heated. The start of stirrer N2 during the pre-conditioning and feeding of tank A2 is strictly forbidden, which will affect the accuracy of the feed metering.

● Main mixing kettle A1 additive

(1) Main blending kettle A1 adds base oil J2:

opening a pneumatic control valve (feed valve) FCV2 of the main mixing kettle A1, wherein the opening of the pneumatic control valve FCV2 is set to be 100%; opening a pneumatic ball valve (channel valve) FV7 of the base oil J2; the base oil J2 transfer pump (not shown) is started to start feeding. When a single dose is added to 90%, the opening degree of the pneumatic control valve FCV2 is set to 50%, and the opening degree is gradually reduced according to the percentage of the dose (ensuring the accuracy of the dose); when a single dose is added to 99% (empirical value, depending on how much medium remains in the conduit after the valve), the pneumatic ball valve FV7 is closed, the base oil J2 delivery pump is stopped, and the opening of the pneumatic regulator valve FCV2 is kept at 100% (if no base oil is added in the later step, the pneumatic regulator valve FCV2 is closed).

(2) Main mixing kettle A1 is added with an additive T2:

opening a pneumatic control valve (feed valve) FCV1 of the main mixing kettle A1, wherein the opening of the pneumatic control valve FCV1 is set to be 100%; opening a pneumatic ball valve (channel valve) FV2 of the additive T2; the additive T2 delivery pump (not shown) is started to start feeding. When a single dose is added to 90%, the opening degree of the pneumatic control valve FCV1 is set to 50%, and the opening degree is gradually reduced according to the percentage of the dose (ensuring the accuracy of the dose); when the single dose is added to 99% (empirical value, depending on how much medium remains in the conduit after the valve), the pneumatic ball valve FV2 is closed, the additive T2 delivery pump is stopped, the opening of the pneumatic regulator valve FCV1 is kept at 100% (the pneumatic regulator valve FCV1 is closed if no additive is added in the later step),

(3) Main mixing kettle A1 is added with additive T3:

opening a pneumatic control valve (feed valve) FCV1 of the main mixing kettle A1, wherein the opening of the pneumatic control valve FCV1 is set to be 100%; opening a pneumatic ball valve (channel valve) FV3 of the additive T3; the additive T3 delivery pump (not shown) is started to start feeding. When a single dose is added to 90%, the opening degree of the pneumatic control valve FCV1 is set to 50%, and the opening degree is gradually reduced according to the percentage of the dose (ensuring the accuracy of the dose); when the single dose is added to 99% (empirical value, depending on how much medium remains in the conduit after the valve), the pneumatic ball valve FV3 is closed, the additive T3 delivery pump is stopped, the opening of the pneumatic regulator valve FCV1 is kept at 100% (the pneumatic regulator valve FCV1 is closed if no additive is added in the later step),

(4) Adding a barrel agent D2 into a main blending kettle A1:

and opening a material valve of a feeding ball station (a ball service station B1) of the main mixing kettle A1, and sending out a command that the barreled additive adding unit DDU can pump the additive, and waiting for the completion of pumping of the barreled additive adding unit DDU.

(5) Adding a barrel agent D3 into a main blending kettle A1:

After all the barreled agents in the formula are pumped, the system returns the DDU of the adding unit for receiving the barreled additives to the cleaning oil and the sweeping line, and the steps are as follows

And (3) maintaining the material valve of the material feeding ball station (the material feeding station B1) in an open state, waiting for the barreled additive adding unit DDU to return the residual base oil J3 to the main blending kettle A1, and executing the line sweeping step after finishing.

(6) The main mixing kettle A1 performs the steps of heating and stirring:

the heating process of the main blending kettle A1 is carried out in a segmented way, and heating valves with different segments are opened according to the positions of the corresponding heating segments of the weight of materials in the main blending kettle A1, for example: when the material in the main mixing kettle A1 is 5T and the material liquid level is lower than that of the middle section heating pipe, opening a pneumatic ball valve (bottom section heating valve) FV17; when the material in the main mixing kettle A1 is more than 5T and the material liquid level is lower than that of the high-section heating pipe, opening a pneumatic ball valve (bottom section heating valve) FV17 and a pneumatic ball valve (middle section heating valve) FV16; when the liquid level of the materials in the main mixing kettle A1 is in the range of the high-section heating pipe, the pneumatic ball valve (bottom section heating valve) FV17, the pneumatic ball valve (middle section heating valve) FV16 and the pneumatic ball valve (high Duan Jiare valve) FV15 are opened. The heating inlet valve is opened and the pneumatic ball valve (heating outlet valve) FV18 is also opened. When the heating temperature set point is reached, the corresponding heating valve is closed.

The electric motor (stirring motor) M1 is started to stir. The electric motor M1 is operated for a set time to automatically stop stirring. The electric motor M1 can switch the local control on site, and the stirring work can be continuously started manually.

Note that the heater has a high heat source temperature and fast conduction, and the pneumatic ball valves FV15, FV16, FV17 are closed in advance according to the set values, preventing the ingredients in the main mixing tank A1 from being excessively heated. The start of stirrer N1 during the main regulation and during the feeding of tank A1 is strictly forbidden, which will affect the accuracy of the feed metering.

(7) The main blending kettle A1 is added with the auxiliary agent F1 of the pre-blending kettle A2:

the pneumatic ball valve (outlet valve) FV22 of the pre-mixing kettle A2 is opened, and the materials in the pre-mixing kettle A2 flow into the main mixing kettle A1 through the connecting pipeline and are continuously mixed in the main mixing kettle A1. When the material in the pre-mixing kettle A2 is emptied, the pneumatic ball valve FV22 is closed.

At this point the batch of finished oil formulation has been fully entered into the main blending tank A1, the system will continue to perform other steps of the blending process (e.g., heating and stirring) until the blended finished oil is fully qualified. The batch blending is completed.

● Finished oil conveying of blending kettle

1) Conveying finished oil in a pre-blending kettle A2: opening a pneumatic ball valve (kettle bottom valve) FV23 of the pre-blending kettle A2; the transfer pump (not shown) is started to start transferring the product oil in the preconditioning tank A2. And (5) closing the pneumatic ball valve FV23 until the materials in the pre-mixing kettle A2 are emptied, and stopping the conveying pump.

2) Conveying finished oil in a main blending kettle A1: opening a pneumatic ball valve (kettle bottom valve) FV21 of the main blending kettle A1; the transfer pump (not shown) is started to start transferring the product oil in the main blending tank A1. And stopping the conveying pump until the material in the main mixing kettle A1 is emptied, and closing the pneumatic ball valve FV 21.

● Blowing and sweeping of finished oil conveying pipeline of blending kettle

After the finished oil of the blending kettle is conveyed, some materials can remain in the pipeline, and at the moment, the materials in the residual pipeline are cleaned up by adopting gas (generally compressed air is used according to the characteristics of oil products of users). The automatic batch blending system is provided with a control valve and a pressure regulating valve whole set of device for purging, so that the automatic batch blending system is convenient for a user to use. The specific steps are described below.

The pressure used for purging is adjusted (the pressure is properly adjusted according to the length of a pipeline and the viscosity of the material, and is generally 2.5-4 Bar), a pneumatic ball valve (purge valve) FV24 is opened, and gas pushes the material to a destination through a pump cavity and a pipeline. In order to ensure the cleaning of the pipeline, the purging can be repeated for a plurality of times, and the purging is timed according to time.

Note that while the purge function is used, it is necessary to ensure that both bottom valves FV21 and FV23 are in a closed state.

● Blending kettle cleaning

In order to ensure that the oil products of another variety are not polluted by residues during blending, the inside of the kettle needs to be kept clean, and the blending kettle needs to be cleaned after the current blending is finished. The cleaning oil pipeline is connected with the base oil feeding collecting pipe, and the used oil is customized by a user. Each kettle adopts two spiral spray heads, and cleaning oil from a delivery pump forms a sector to cover the inner surface of the whole kettle through the spray heads. The specific steps are described below.

Opening a pneumatic ball valve (cleaning valve) FV13 or FV14, opening one channel valve such as FV6 in the base oil, starting a corresponding conveying pump to start cleaning the blending kettle, controlling the cleaning amount by a weighing unit of the blending kettle, and controlling the cleaning amount according to time. And quantifying or timing according to the attachments and the required cleanliness of the inner wall of the blending kettle. After cleaning, the base oil supply channel valve is closed firstly, and after a certain time delay, the pneumatic ball valve (cleaning valve) FV13 or FV14 is closed, and the oil in the pipeline automatically flows or is swept into the kettle by wind.

And after the cleaning is finished, the cleaning oil in the kettle is emptied, and the system is in a standby state and is ready for blending of the next batch.

By adopting the technical scheme, the automatic batch blending system also has the following beneficial effects: 1-improving the working efficiency and the productivity; 2-modernization operation; 3-clean site, no potential safety hazard; 4-the operation is simple, and the manual transportation is not needed; 5-no cross contamination, the quality reliability of the product is ensured; 6-no leakage products on the ground, reducing losses; 7-through computer program control operation, the method is simple, the efficiency is high, and the speed is high; 8-realizing accurate control, and the one-time finished product qualification rate reaches more than 95 percent.

It should be noted that, the protection scope of the present utility model is not limited to the specific embodiments described in the above specific embodiments, but falls within the protection scope of the present utility model as long as the protection scope of the claims of the present utility model is satisfied.

Claims

1. An automatic batch tempering system comprising a plurality of inlet passages, a tempering tank, a plurality of control valves, a stirrer, a heater, a pooling passage, a flushing passage, and a purge assembly, wherein

The plurality of inlet channels serving as material inlets for each ingredient, the plurality of inlet channels for each ingredient flowing into the automatic batch tempering system,

the inlet side of the blending kettle is communicated with the inlet channel,

the control valves are respectively arranged at the inlet channels, the inlet side and the outlet side of the blending kettle, the control valves are used for controlling the ingredients to flow into and out of the automatic batch blending system and controlling the flow of the ingredients in the automatic batch blending system according to the preset proportioning of the ingredients,

the stirrer is arranged in the blending kettle and is used for stirring all ingredients in the blending kettle, and

the heater is arranged in the blending kettle, the heater is used for heating the blending kettle in the blending process of the blending kettle, the blending kettle comprises a main blending kettle and a pre-adjusting kettle, a multi-stage heater is arranged on the main body part and the bottom of the main blending kettle, the multi-stage heater is a three-stage heating device, different-grade heating is started according to the weight ratio of ingredients in the main blending kettle and the kettle, the multi-stage heater is a heating coil wound outside the main blending kettle and the kettle in a multi-turn mode, the main blending kettle and the kettle are heated through a heating medium flowing in the heating coil, and the heating medium flows into each-stage heater through a pneumatic ball valve at the inlet side of the heating coil, namely the opening of each-stage heater is controlled; the outlet side of the heating coil pipe controls the heating medium to flow out of each stage of heater through the pneumatic ball valve,

the automatic batch tempering system further comprises an additional feeding unit communicated with the inlet side of the tempering kettle, the additional feeding unit comprises a barreled additive adding unit, the tempering kettle and the barreled additive adding unit are communicated through an additional feeding channel, a ball sweeping assembly is arranged between the additional feeding unit and the tempering kettle on the additional feeding channel, an auxiliary material feeding port of the main tempering and kettle is communicated with the barreled additive adding unit through a ball sending station and a ball collecting station of the ball sweeping assembly, an auxiliary material feeding port of the pre-tempering and kettle is communicated with the barreled additive adding unit through a ball sending station and a ball collecting station of the ball sweeping assembly,

the utility model discloses a tempering kettle, including tempering kettle, collection passageway, flushing component, collection passageway, flushing component and automatic batch tempering system, the collection passageway with the outlet side of tempering kettle communicates, the outlet side of collection passageway communicates with the finished product collection component, collection passageway is used for the outflow of the finished product in the tempering kettle, the flushing passageway be provided with spray the washing mouth with the inlet channel with tempering kettle communicates, the flushing passageway is used for rinsing the tempering kettle, and the flushing component includes the passageway and the purge valve, the passageway with the inlet passageway with collection passageway communicates, the subassembly is used for purging in batches voluntarily.

2. The automated batch tempering system of claim 1, wherein the volume of the preconditioner and kettle is less than the volume of the master batch and kettle, wherein unidirectional communication is established between the master batch and kettle and the preconditioner and kettle from the preconditioner and kettle to the master batch and kettle.

3. The automated batch tempering system of claim 2, wherein the agitator provided to the main tempering tank is a multi-stage agitator.

4. The automated batch tempering system of claim 1, further comprising a plurality of sensors disposed in the tempering tank and configured to measure various parameters of the ingredients within the tempering tank, the plurality of sensors including a weighing element, a temperature sensing element, and a liquid level sensing element.

5. The automated batch tempering system of claim 1, wherein the tempering tank is a flat top cone bottom tempering tank, the flat top side of the tempering tank is an inlet side, and the cone bottom side of the tempering tank is an outlet side.

6. A tempering method using the automatic batch tempering system according to any one of claim 1 to 5, wherein,

in the case of reconciliation with the automated batch reconciliation system, the reconciliation method comprises: a conveying step, a blending step, an output step, a purging step and a flushing step,

in the conveying step, the control valve is opened according to the preset proportion of each ingredient, so that each ingredient flows into the blending kettle in proportion to each preset proportion of each ingredient, and in the conveying step, each ingredient remained in each channel is purged into the blending kettle by using the purging component of the automatic batch blending system;

after the conveying step is completed, in a tempering step, controlling a stirrer of the tempering tank to stir the ingredients in the tempering tank and controlling a heater of the tempering tank to heat the tempering tank, and measuring parameters of the ingredients by a plurality of sensors of the tempering tank to monitor a tempering state of the ingredients in the tempering tank;

in the output step, standing the finished product obtained after the completion of the tempering for a preset time and outputting the finished product from the tempering kettle through a collecting channel of the automatic batch tempering system;

after the output step is completed, in the purging step, opening the purging component, and purging the collecting channel by adding compressed gas; and is also provided with

After the purging step is completed, in the flushing step, the tempering tank is flushed through a cleaning channel of the automatic batch tempering system, and finally the tempering tank is emptied.