HU209895B - Apparatus formed with multi-functional container-carriage of intermittent running and operation unit for chemical-industrial operations - Google Patents

Abstract

Appts. comprises a wheeled container and a processing unit both of jacketed construction, connected by a flange. The vessel of the processing unit is mounted on an eccentric hollow shaft using bearings. The bottom of the container unit is covered with a strainer separating the solids containing space from the vapour space. Its jacket is provided with a vapour discharge pipe with quick release coupling and flexible hose which connects it to the vacuum pipe of the processing unit. - Heat fluid connections, clea-out door and wheels are also provided on the container unit. The jacket of the processing unit vessel is also provided with heating fluid connection and an inert gas connection. A filter, filling-emptying connection and closure unit are also provided.

Description

Scope of the description: 6 pages (including 2 sheets)

EN 209,895

Field of the Invention The present invention relates to a device for intermittent multi-functional container wagons and operating units for chemical, especially centrifugal, filter, transport and drying operations.

In order to provide the apparatus according to the invention, the extremely urgent chemical demand has led to the fact that a process and group of machines without satisfying the technological and safety aspects for the processing of the suspensions, slurries per charge up to the packing are not known. Successive typical operations - e.g. solid-liquid separation (filtration, extraction, centrifugation); subsequent material handling (manual container) and drying (vacuum or fluid-inert gas, etc.) with packaging (sacking) are very common, especially in the pharmaceutical and fine chemicals industry.

Many solutions are known to run these operations on a separate device, but there are also some solutions that can perform some of the above-mentioned operation lines together. However, no solution is known which can implement the above operations together and flexibly, within a single device.

Continuing with the foregoing, it seems expedient to analyze the listed operations or some of their groups through the most important solutions we know and to compare them with the proposed new solution.

A frequent and increasingly widespread separation process of suspensions from a batch reactor is a solid-liquid separation operation with a bottom-drained peeler-centrifuge (see: Fejes-Tarján: Chemical Machinery and Operations Tankbook Publisher, pp. 1979-341). The filtered and sufficiently "spun" centrifuge cakes are separated from the filter fabric by a scraper (s) at a lower speed. Falling material can be delivered to a stationary, fixed container, to a mobile mobile container, or to a continuous transport conveyor. If vaccines are used, the above procedure should be performed in an inert gas atmosphere. In such cases, only fixed or custom-designed mobile containers providing gas tight closure can be considered. In most cases, these containers can only serve one function, namely storing the peeled material. (In the case of a mobile version, this is added to the material movement.) Other operations, such as filtration, extraction or drying, are not allowed. We have found only one of the major development and manufacturing companies we know, which has created a solution where the centrifuge car is also part of a fluidization dryer. However, this solution is also not suitable for vacuum drying (which is indispensable for wetted fabrics), but not suitable for extraction or solid-liquid filtration operations.

Another common simple process of separating solid-liquid systems is vacuum filtration (see: Fejes-Taiján: Chemical Machinery and Operations - Tankönyvkiadó, Bp. 1979 - 280). These devices separate the two phases using self-supporting or interchangeable filter elements. Some of their designs are also known in mobile versions. However, their design is purpose-oriented so that other operations, such as drying, cannot be performed in them.

Available equipment and procedures should also be tested for drying.

Vacuum and fluidization equipment as dehumidifiers are also the result of goal-oriented development work that was only later extended to suit applicability.

As a result, a wide range of types and sizes are available mainly on the foreign market but partly on the domestic market. Therefore, it is only appropriate to deal with the types that are somehow closer to the solution we propose.

Intermittent vacuum dryers are known, which are generally stationary, in or out. Apparatus equipped with a filler aperture jacket and stirrers (see Dr. Scheiling: Drying Wetted Wet Seeds - Technical Tech., pp. 1972 - 155). Since the dryer body is not mobile, and therefore cannot be used as a material container, it usually contains only a gas solid filter element and therefore cannot be used for liquid-solid filtration or extraction. One solution is known in which the drying vessel is interchangeable and mobile, but in the absence of a filter element, its use as a filter or extract is also not possible.

Fluidization dehumidifiers are similar in terms of mobility than vacuum driers, with the addition that these devices usually have a "filter-like" element to distribute the fluidization medium, but this is not suitable for solid-liquid filtration and the dryer body is not suitable as a centrifuge container .

The fluid flow required for fluidization can be significantly reduced by mechanical stirring. This type of effect is only used by a few types.

The latest 5-10 years of development have resulted in universal multi-action chemical mixers. Perhaps these are most comparable to the solution we propose. In these devices, it is possible to carry out almost the entire spectrum of filtration, extraction and drying operations, but no solution is known where any part of these devices could be used as a mobile container, centrifuge filter vessel.

It is an object of the present invention to provide a multifunctional container wagon that can be used as a centrifuge pick-up container, nozzle filter, extractor and as part of a drying apparatus. In its size and volume, it is adapted to the already existing values of the peeler-lowered centrifuges. The multifunctional container wagon according to the invention must perform the following tasks or satisfy the following requirements:

- Have a filter element that is suitable for separating liquid-solid phases.

EN 209,895

- The design should be such that the device can be subjected to open or closed system vacuum filtration.

- The design should be such that solid-liquid batch extraction can be performed.

- The equipment should be mobile, container-like, which provides connectivity to either inert gas centrifuges or the proposed drying half-body.

- The container wagon must be heated or cooled.

- The container wagon can be mixed.

- Container wagons can be connected to the energy network through flexible switches.

- Container wagons should be a centrifuge on one hand and a dryer on the other.

The structure of the apparatus according to the invention is illustrated in the drawings. The

Figure 1 is a front view of the apparatus a

Figure 2 is a side view.

The two main units of the equipment are the multifunctional container container 1 and the operator unit 2. They are connected to each other by flanges. The flange consists of one of the fixed flanges 20, in which the flat flange 7 of the container car can be inserted, and the other two flaps 21 which can be locked on the hinges. The closure of the flange parts is solved with the flange fuse.

The multifunctional container container 1 is essentially a centrifuge of a double-walled cylindrical vessel. The wall of the inner vessel 3 contacts the treated material, the wall 4 of the container 4 is preferably provided with insulation. There is space 6 between the inner wall of the vessel 3 and the outer wall of the container 4, where the heat transfer is introduced. The container of the multifunctional container 1 consists of two parts: the bottom part and the cylinder part. The two vessels are closed at the top edge of the trolley by the 7-sheet flange. This 7-sheet flange is connected, on the one hand, to the discharge opening of the bottom-empty ingacentrifuge, and on the other hand to the operating unit 2 in another operation. In both cases, the 7-sheet flange provides a gas-tight seal with the inflatable sealing hose 8. The filter 9 on the bottom of the container wagon 1 separates the compartment 10 of the container from the dehumidifier 11 for draining the filtrate or vapor.

Container 12 is routed between the interior wall 3 and the outer wall 4 of container 1. The humidity outlet 12 is connected to one side of the quick connection 13. This is the vacuum connection.

Container 1 is connected here by a flexible cable 32 to the operating unit 2; in the case of centrifugation to the drain line or, in the case of nucleation filtration, to the filter vacuum.

Container carriage 1 is provided with an inlet port 14 and an outlet 15 for supplying the heating or cooling medium. These nipples are provided with 13 quick couplings.

Container carriage 1 is provided with wheels 16 for movement and material transport between different operations. For cleaning all humidity, a demountable cleaning opening 17 at the bottom of the container wagon 1 serves.

The operating unit 2, like the container truck 1, consists of a double-walled vessel. An energy inlet tube 27 is connected between the inner wall 18 and the outer wall of the vessel 19 through the tube shaft 24; the energy discharge tube 28; the vacuum tube 29 and the inert gas inlet tube 30. The container is mounted on an eccentricly arranged tube shaft 24. The container of container 1 and of the operating unit 2 relies here on the bearing part 25 through the bearings 25. The server part consists of: 26.1 rack structure; from power supply unit 26.2 and controls 26.3.

The container of the operating unit 2 is provided with mechanical stirrers 33 connected to its external shaft 34 by its shaft.

The container also includes a discharge / dispensing opening 36 with a closure 37 and a fluidizing filter 35. The operation of the multifunctional device according to the invention is described by the description of each function:

I. Centrifuging - Filtering - Delivery

The operating unit 2 here is a lower drain peeler centrifuge under which the multifunctional container carriage is rolled. Using compressed air or inert gas, the sealing hose 8 is inflated through a flexible pipe connection. Inerting is carried out in a common enclosed space of the centrifuge and container thus connected. After the spin operation is completed, the material is automatically cut off with a knife. The solid wet material falls on the filter 9 of the container wagon. Prior to the demolition of the groove and the container, it is advisable to suck the system through the vacuum tube 29, which removes the liquid phase which may overflow during the centrifugation and / or drip off the peeled material. Once the gas tight closure is completed, the container wagon can be switched off and rolled out.

The container trolley can be rolled onto the stationary part of the system, which is a semi-body 2 operating unit, which is suitable for loading and unloading material in addition to tilting and mixing as a main operation. The multifunctional 1 container wagon is attached to the 7-flange as in the above position. The common enclosed space thus formed is heated or cooled from the outside by the energy supply unit 26.2 through the energy inlet tube 27 and the discharge pipe 28. The vacuum, by which the entire system is sucked, is connected to the vacuum tube 29.

The apparatus thus prepared for drying is tilted to an almost vertical position along an eccentric axis. The gearbox 34 is actuated to the mechanical stirrer 33. In this situation, the fluid filter has become a solid gas filter. By continuously monitoring and measuring the vacuum and material temperature, we conclude the drying state.

In the event of an increase in the temperature of the material, the vacuum plowing can be converted to a weak inert gas fluidization drying by injecting overpressure N ₂ gas through the inert gas mixing tube 30. At the end of plowing, through the dispensing opening 36

The substance may be bagged or emptied into a powder container. After switching off the mechanical stirrer 33, the container carriage 1 is again tilted back to its original position. In this position, it can be used for storing dried material. Once the flexible energy connections are disassembled, the gas tight closure is removed and the container carriage is rolled out, so that the container carriage 1 and the drying half body are also freed in full cross-section, making cleaning extremely easy.

Description of filter drying

Starting with open-system nucleus filtration, the multifunctional container 1 is pushed under the reactor and vacuum 7 is connected. The suspension was poured onto the vacuum-suction filter plate 6 and the filtration was carried out, followed by the subsequent drainage. The subsequent drying operation from coupling to the fixed operating group 9 is done in the same manner as described above.

The entire operation (filtration and drying) can also be performed in a closed system. In this case, the coupled closed, stationary system is filtered and dried in a connected closed, tilted, mixed system.

Multi-stage, batch, solid-liquid extraction

In this case, the amount of material to be extracted is loaded into the open multifunction container 1, and then connected to the operating unit 2 as described above. After securing the gas-tight closure, the container carriage 1 is tipped and the required amount of extinguishing agent is added at the same time as stirring. Quickly adjusting the extraction balance can be assisted by external heating. Upon completion of the stirring, the apparatus is tilted to a stationary position and the vacuum is applied to the filter 9 to separate the extract from the solid phase. The entire cycle is then repeated until the desired extraction yield is reached. The process is terminated by drying the extracted residue.

The economic benefits of the invention can be summarized as follows:

- Using a multi-purpose container wagon, you can create highly flexible manufacturing processes that reduce both investment and operating costs.

- Typical production lines make quality control very easy.

- The multifunctional container wagon does not only provide flexibility within a production hall, but also between production halls.

- The number of carriages can always be flexibly adjusted to the dominant chemical operation.

- Using a multi-purpose container trolley, material handling is simplified, resulting in significant labor savings.

The closed-loop succession of chemical operations solves a number of safety, health and environmental issues while reducing material losses. Together, these are the efficiency of production.

Claims (1)

Patent Claim Point A batch operation multi-functional container trolley and operating unit for chemical operations, characterized in that the multifunctional container trolley (1) and the operating unit (2) consist of double-walled vessels, preferably provided with insulation (5), connected to one another by a flange. a fixed flange portion (20) into which the flat container flange (7) can be inserted, and a pair of lockable flange pivots (22) pivoting on two hinges (21), the flange portions being closed by an inflatable sealing hose (8) and flange locking device (23); the vessel of the operating unit (2) being mounted on an eccentric tube shaft (24) and connected to the rack structure (26.1), the power supply unit (26.2) and the controls (26.3) via bearings (25); the bottom of the container car (1) has a filter (9) which separates the solid space (10) of the vessel from the humidifier (11), the humidifier (11) being provided with a vapor outlet pipe (12) between the inner and outer vessel walls (3,4) equipped with a vacuum conduit (29) for the operating unit (2) via a flexible cable (32) mounted on a quick connector (13), further on the container carriage (1) with energy in and out connections (14; 15), a cleaning opening (17), wheels (16) is provided; between the inner and outer vessel walls (18, 19) of the operating unit (2), the energy inlet pipe (27), the energy outlet pipe (28) and the inert gas inlet pipe (30), and the vessel of the operating unit (2) a mechanical agitator (33) disposed on its shaft, connected to an external gear (34), a fluidizing filter (35), a discharge / discharge opening (36) and a closure (37).